1.  Tsaneva N, Danev S, Dobrovolski I. (1966) Recherches sur le travail des operateurs dans l�industrie chimigue. Le Travail Humain, XXIX, 3-4,  161 - 163
2.  Danev S (1966) Processing of information and ergonomical optimisation of �man-machhine� system. In:  Investigation of Working Conditions, 109-121, Prague, (in Czech)
3.  Gantchev G, Danev S, Koitcheva V (1966) La corrrelation entre la frequence  cardiaque et la quantite de l,information. Le Travail Humain, XXIX, 131-133
4.  Gantchev G, Danev S, Koitcheva V (1967) La  frequence cardiaque au cours d�un travail de differente responsabilite et correlation avec la quantite  de l�information  recue et elaboree. Activ Nerv Sup, 9, I, 25-29
5.  Danev S (1968) Heart rate at various types of  information coding  under laboratory conditions. Activ Nerv Sup, 10, I, 15-21
6.  Danev S (1968) A study of some factors influencing pulse frequency in conditions of paced choice-reaction performance. Activ Nerv  Sup, 110, 4, 389-394
7.  Danev S (1968) Heart rate augmentation as a result of increased amount of processed information in connditions of choise reaction performance. Actiiv Nerv Sup, 10, 2, 177-179, (in Czech)
8.  Danev S (1969) Deux mannieres de presenter l�information; leur influence  sur le �time-stress�. Le Travail Humain, XXXII, 312-314
9.  Danev S (1969) Comparison of two manner of processing information on the basis of their influence upon �time-stress�. Stud Psychol, Bratislava,XI,2,125-130,  (in  Russian)
10.  Danev S, Bink B, Wartna  G  (1970) Assessment of informational load. NIPG-TNO, Leiden, (int. rep.)
11.  Danev S, Wartna G (1970) Relation between making mistakes and the T-P interval in the ECG.  NIPG-TNO,  Leiden, (int. rep.)
12.  Wartna G, Danev S, Bink B (1970) Sinusaritmie als maat voor mentale belasting. Proc. of 11-th Feder Vergadering van Medisch  - Biol Vereningen, Leiden, (in Dutch)
13.  Danev S,  Winter C (1970)  Expectation, attention and heart rate deceleration. NIPG-TNO, Leiden, (int. rep.)
14.  Danev S, Winter C, Wartna G (1970) On the relation between information handling and some cardiovascular parameters in a task with and without �time-stress�. NIPG-TNO, Leiden, (int. rep.)
15.  Danev S, Winter C (1970) �Time-stress� and the relation between decision and motion times. NIPG-TNO, Leiden, (int. rep.)
16.  Danev S,  Winter C, Wartna G (1970) �Time-stress� and katachretical behavior. NIPG-TNO, (int. rep.)
17.  Danev S, Wartna G (1970) Information load and �time-stress�: some psychophysiological consequences. TNO  - News, 25, II, 389-395
18.  Danev S, Wartna G, Bink B, Radder J (1970) Psychophysiological assessment of information load. Proc.  of 4-th Int.  Congr. Ergonomics, Strassbourg, 26-27
19.  Danev S, Wartna G, Bink B, Radder J, Lutein I (1971) Psychophysiological assessment of information load.  Nederlands Tijdschrift voor de Psychologie, XXVI, I, 23-39
20.  Danev S, Winter  C (1971) On the relation  between  reaction and motion time in a choice reaction task. Acta Psychologica, 35, 188-197
21.  Danev S,  Wartna G, Radder J (1971) Are the R-R intervals normally distributed. Plugers Arch 328,3,261
22.  Danev S. Winter C.R (1971) Heart rate deceleration after erroneous responses-a phenomenon complicating the use of heart rate variability for assessing mental load Psychol. Forsh, 35, 27-34.
23.  Danev S, Winter C,  Wartna G  (1972) Information processing and psychophysiological functions  in a  task with and  without �time-stress�. Act Nerv Sup, 14, I, 8-12
24.  Danev S (1973)  Are the R-R  intervals in the ECG normally distributed: an attempt  to  clarify.  Ergonomics 16, I, 311
25.  Danev S, Winter C,  Wartna  G (1973) Improvising in simulated manual tasks as a function of �time-stress�. Studia  Psychol, XV, I, 54-64
26.  Danev S, Radneva R, Zlatarov I (1975) Changes  in  heart rate variability due  to informational, physical and emotional load in laboratory and field conditions. Activ Nerv Sup, 17, 3, 187-188
27.  Danev S, Tomov E, Tzaneva L (1976) Upon  the usefulness of  some psychophysiological criteria for assessment of extraaural  noise effect. Ergonomia, 9, 32-38, (in Bulgarian)
28.  Danev S, Zlatarov I, Radneva R (1976)  Changes in heart rate variability due to emotional and mental load. Proc. of 2-nd Int Ind Envir Neur Congr, Prague, 120-123
29.  Ivanovitsh E, Antov G, Danev S,  Goranova L (1976) Ensymic changes in rat myocardium  after brief noise exposure. Proc. of IX-th Congress for Noise Protection, Budapest, 87-89
30.  Ivanovitsh E, Danev S, Antov G,  Goranova L, Nikolova L (1976) Behavioral and biochemical  changes in rat brain due to stady-state  noise. Proc. of IX-th  Congress for Noise  Protection, Budapest, 81-84
31.  Radneva  R, Danev S (1976) Upon the combined noise-vibration influence of some psychophysiological parameters. Proc. of 2-nd Int Ind Envir Neur  Congr, Prague, 423
32.  Danev S (1978) Functional age. Ergonomia, 13, 31-40, (in Bulgarian)
33.  Danev S (1979) Functional music and work performance. Health,  IV, 12-13, (in Bulgarian)
34.  Tzaneva L, Danev S (1981) Upon the influence of  small doses of alcohol upon operator�s performance. Work Hygiene and Prof Diseases, Mosque, 5, 36-37 (in Russian)
35.  Danev S (1981) �Man-machine� system. In: Work Psychophysiology, 40-47, Sofia, (first edition), (in Bulgarian)
36.  Danev S, Beraha R (1983) A method estimating the speech intelligibility in noisy industrial conditions. Proc. of 4-th Seminar and Exhibition on Noise Control, Sombathely, Hungary, 234-237
37.  Danev S, Beraha R, Tzaneva L, Datzov E, Dobrovolsky J, Satchanska T, Vangelova K, Shmarov A (1985)  The influence of long-term noise exposure on the  verbal intelligibility  and some psychophysiological parameters.  Proc. of 1-st Int Symp on Human Perf and Envir, Sofia
38.  Danev S (1986) Evaluation methods for self-propelled agricultural machines and tractors.  Paper presented on  Intern Work Shop (WHO) �Occupational  health in agriculture�, Sofia
39.  Danev S (1988) Mathematical analysis of heart  rate variability. In: Work Psychophysiology, Sofia, (sec. edition), (in Bulgarian, summary in English)
40.  Danev S, Datzov E (1988) Assessment of work-adaptation by means of heart rate variability. Hygiene and Health Care XXXI,5,33-41, (in Bulgarian)
41.  Nikolova R, Danev S, Datzov E, Beraha R. (1988) Using of the heart rate for assessment of mental work load in video display operators, Proc. of Conf.: The man in conditions of the science technique, Varna
42.  Nikolova R, Danev S, Dazov E. (1988) Changes in the pulse variability in tasks connected with informational processing under conditions of time deficit, paper pres. on V-th National congress of Hygiene, Sofia
43.  Danev S,  Datzov  E, Nikolova R (1988) Analysis of  heart  rate variability: a method estimating the interaction between man and environment. Proc. of 2-nd Sc Sess of Program for Complex investigation of man and  his brain. Sofia, 52-53
44.  Danev S (1988) Une nouvelle methode pour l�evaluation du confort  ergonomigue, fondee sur les changements  du  rhythme cardiaque. Paper pres. on XXIV-th Congress de la SELF, Paris
45.  Danev S, Datzov E (1988) Mathematical indices of heart rhythm for assessment of toxicological  health hazard. Health and Prof Dis, Mosque, 11, 31-33, (in Russian)
46.  Tzaneva  N, Nikolova R, Topalova M,  Danev S (1989) Changes in shift workers operating a day and night 12 hour  schedule in carbon disulfate production. Paper pres. in Shift work: Health, Sleep and Performance, G. Costa ets. et all, P. Lang, Frankfurt am Main, 324-329
47.  Nikolova R, Danev S. (1989) Assessment of working capacity and functional state of operators from electrical power station, working under 12 hour shift, Paper pres. on IX-th Conf. of the Young Specialists, Varna
48.  Nikolova R, Danev S. (1989) Heart rate variability circadian rhythm in work conditions, Paper pres. on Conf. of the Young Specialists, Varna
49.  Danev S  (1989) Heart rate variability in work-physiological aspect. Doctoral Thesis., Medical Academy, Sofia, (summary in English)
50.  Danev S (1990) Assessment of  functional state by means of computer analysis of heart rate variability (HRV). Proc. of I-st Intern Conf: Computers in  Medicine and Health Care, Karlovy vary
51.  Datzov E, Danev S, Beraha R (1990) Computer method for assessing the objective nature of failures during tests involving static muscle effort. Proc. of I-st Intern Conf: Computers in Medicine and Health Care, Karlovy vary
52.  Datzov E, Danev S. (1990) Changes in power density spectrum in tasks comprising static muscule effort. Problems of Hygiene, 16, 71-75, (in Bulgarian, summary in English)
53.  Kazandziev G, Danev S, Brankov B, Todorov E. (1990) Mathematical analysis of heart rate variability as an element increasing security in operative practice (anesthesia with isofuran), Proc. of 4-th National Conference for Anesthesia, Reanimation and Intensive Therapy, Sofia, 32-39, (in Bulgarian)
54.  Datzov E, Danev S (1990) Assessment of toxicological hazard by means of heart rate variability and electroneurography. Proc. of XXI-th Semaine Medicale Balkanique, Varna
55.  Danev S, Datzov  E (1990)  Spectral analysis of heart rate and its correlation with heart rate variability. Proc. XXI-th Semaine Medicale Balkanique,  Varna
56.  Danev S. (1990) Changes in the variability of heart rhythm in diabetes patients, Hygiene and Health Care, XXXIV, 3, 42-46, (in Bulgarian, summary in English)
57.  Danev S, Kazakova M (1990) A new method for cardiovascular examination with informative value for prophylactic and clinical medicine, Contemporary Medicine, XI, I, 16-19, (in Bulgarian)
58.  Danev S, Pavlov E, Koleva E, Nikolova R, Datzov E. (1990) A method augmenting the possibility of system �Sport-tester PE - 3000�. Questions of physical education, 7,21-25 (in Bulgarian)
59.  Danev S, Datzov E, Nikolova R., (1990) Corrections of Heart Rate Variability Indices to Minimize the Effect of Postural Change and Circadian Rhythm Acta Medica, vol. XVII, 90, 2, (in Bulgarian, summary in English)
60.  Danev S. (1990) The influence of noise masking effect upon heart rate variability. Paper pres. on Symp: Noise Effects on the Inner Ear, Gera, Germany
61.  Danev S, Bozinova D. (1991) A computer based method for assessment of work-related immobilization. Proc. Of XXII Conf of Hygienic Stations, Varna, 36-41 (in Bulgarian, summary in English)
62.  Danev S. (1991) How to use computer analysis of heart rate variability in sport. Paper pres. At First Transeuropean Meeting �Sport and health�, Montpellier, France
63.  Tsaneva L, Danev S, Datzov E. (1991) Ergonomical optimisation of verbal informational exchange in industry, Paper presented on Conf. on Ergonomical Labor Protection, Sofia
64.  Danev S, Zlatarov I. (1991) Labour-physiological evaluation of the load and strain of the labuor of operators from ThEPlant �Varna� with 12-h Work-schedule, Hygiene and Health Care, XXXIV, 4, 52-59, (in Bulgarian, summary in English)
65.  Danev S, Nikolova R, Datzov E. (1991) Changes of pulse arrival time during stress, Hygiene and Health Care, XXXIV, 2, 30-36, (in Bulgarian, summary in English)
66.  Danev S. (1991) Changes in the heart rate variability in diabetic patients, Hygiene and Health Care, XXXIV, 3, 42-46, (in Bulgarian, summary in English)
67.  Danev S, Bozinova D. (1991) The diagnostic of overtraining by computer analysis of heart rate variability. Questions of physical education, 4, 13-18, (in Bulgarian)
68.  Nikolova R, Danev S. (1991) Assessment of the information degree of heart rate variability indexes under situations connected with neuro-emotional treatment, Problems of Hygiene, XVI, 61-69, (in Bulgarian, summary in English)
69.  Danev S, Datzov E, Nikolova R. (1991) Corrections of heart rate variability indicators to minimize thew effect of postural change and circadian rhythm. Acta Medica, 18, 2, 54-59, (in Bulgarian, summary in English)
70.  Nikolova R, Danev S, Amudjev P, Datzov E. (1991) Correlation between some psychological dimensions and heart rate variability, Problems of Hygiene, 18, 34-36, (in Bulgarian, summary in English)
71.  Danev S. Heart Rate Variability indices. Hygiene and Health Care, 4, 1992 (in Bulgarian, summary in English)
72.  Sachanska T, Haralanov H, Savov A, Kamenova A, Danev S, Tsaneva L. (1992) Change in the serotin level of patients with central disequilibrium, Paper presented on XXIII-th Congress of NES, Bad Kissingen, Germany
73.  Danev S, Sachanska T, Dazov E, Nikolova R, Kamenova A, Savov A. (1992) Vestibular disorders, reflected by heart rate variability, Paper presented on IV-th National Neurological Congress, Sofia, (in Bulgarian)
74.  Danev S. (1992) Effect of bearing of antiphons upon verbal communication in noisy industrial conditions, Hygiene and Health Care, XXXV, 3, 24-25
75.  Danev S, Datzov E, Nikolova R, Pavlov E. (1992) Assessment of the functional state in psichosomatic complaints of operators from electrical power station, Problems of Hygiene, XVII, 63-69, (in Bulgarian, summary in English)
76.  Datzov E, Danev S. (1992) Electroneurographic assessment of subjects, exposed on vibration, Hygiene and Health Care, XXXV, 1, 25-28, (in Bulgarian, summary in English)
77.  Danev S. (1992) Beurteilung der Arbeitsadaptation und des toxikologischen Risikos mit Hilfe der rechnergestutzten Analyse der Herzfrequenzvariabilitat. Arbeitsmedizin in Osteuropaischen Staaten 2. Internationales Symposium, 7 - 9, Berlin
78.  Iustinianova B, Danev S, Zlatarov I. (1992) Heart rate variability in children with primary arterial hypertension, Hygiene and Health Care XXXV, 4, 14-16, (in Bulgarian, summary in English)
79.  Danev S. (1992) Informativeness of the pulse frequency power density spectrum, Hygiene and Health Care, XXXV, 4, 13-14, (in Bulgarian, summary in English)
80.  Danev S. (1992) Work hygienic control on bioenergoterapeutic performance, Paper presented on Scientiffic symposium of natural medicine and bioenergoteurapy, Sofia, (in Bulgarian)
81.  Danev S.(1992) Changes in heart rate variability due to 12 hours day and night shift work, Problems of Hygiene, 17, 53-57, (in Bulgarian, summary in English)
82.  Danev S, Datzov E. (1992) Changes in biological synchronisation due to bioenergoterapeutic treatment, Paper presented on scientiffic symposium of natural medicine and bioenergoteurary, Sofia, (in Bulgarian)
83.  Danev S. (1992) Computer based method for assessment of psychosomatic complaints before and after bioenergoterapeuetic treatment, Paper presented on scientific symposium of natural medicine and bioenergoterapy, Sofia, (in Bulgarian)
84.  Danev S. (1993) Une nouvelle methode pour l�evaluation du confort ergonomique, foundee sur les changements du rythme cardiaque, paper presented on XXVIII-eme Congres De La Societe D�Ergonomie De Langue Francaise, Geneve
85.  Tsaneva L, Danev S. (1994) Verbal comunication in hazard industrial conditions, Paper presented on VI-th Nat. Conf. of Hygiene and Health Prophylactic, (in Bulgarian)
86.  Nikolova R, Stanchev V, Danev S. (1994) Assessement of work-related stress in air traffic controllers from Sofia airport. In: A. Grieco, G. Molteni, E. Occhipinti, B. Piccoli (Eds.) Book of short papers: Work With Display Units, Grafica Briantea, S.r.l., Como, 1, F9-F10
87.  Danev S, Datzov E. (1994) Cardiac rhythm disturbonses in operators with 12-h work schedule, Paper presented on 5-th Congress of Hygiene and Health Prophylactic, Sofia, (in Bulgarian)
88.  Nikolova R, Danev S, Amudzhev P, Datzov E. (1995) Correlation dependances between some psychologycal dimensions and heart rate variability. Problems of Hygiene, XX, 74-81, (in Bulgarian, summary in English)
89.  Nikolova R, Danev S, Amudzhev P, Datzov E. (1995) Age transfer coefficients of heart rate variability basic indexes, Problems of Hygiene, XX, 59-68, (in Bulgarian, summary in English)
90.  Danev S, Nikolova R, Svetoslavov S. (1995) Detection of nomotopic and heteretopic heart rhythm disturbances by computer analysis of heart rate variability, Paper pres. on IX-th National Congress of Internal Diseases. Sofia, (in Bulgarian, summary in English)
91.  Nikolova R, Danev S, Datzov E. (1995) Assessment of adaptation profile in operators at TV retranslation station �Botev�, Problems of Hygiene, XX, 68-74, (in Bulgarian, summary in English)
92.  Danev S, Dimitrov T, Slavcheva L. (1995) Computer analysis of heart rate variability for assessment of common functional status in pilots, Paper pres. on Nat. Conf. of Aviation Medicine, Sofia, (in Bulgarian, summary in English)
93.  Tsaneva L, Danev S. (1995) Assessment of the effect of masking noise upon the performance of some psychophysiological tasks, Problems of Hygiene, XX, 38-43, (in Bulgarian, summary in English)
94.  Tsaneva L, Danev S, Nikolova R. (1996) Assessment of noise masking effect upon changes in heart rate variability measures. Acta Medica, XXIII, 3, 57-61
95.  Tsaneva L, Danev S, Datzov E. (1996) Hygiene-ergonomical protection of verbal comunication. Problems of Hygiene, XXI, 36-43
96.  Danev S, Datzov E., Svetoslavov S. (1996) Pharmacologically induced sympathetic or parasympathetic influence upon heart rate variability in man. Acta Medica, XXIII, 2, 34-41
97.  Dimitrov T, Danev S. (1996) How to use the analysis of heart rate variability for selection of emploers, exposed to high level work-related stress, Paper presented on Scientific Symposium �The challenge of Stress�, Hisar, (in  Bulgarian, summary in English)
98.  Danev S, Nikolova R, Svetoslavov S. (1996) A new approach to health risk assessment by means of heart rate variability. Procidings of First International Conference: Psychophysiology in Ergonomics, 1, 14-16 Wuppertal, Germany
99.  Danev S, Nikolova R, Kerekovska M. (1996) Correlation between chronic distress and serum lipids, Acta Medica, XXIII, 3, 32-37
100.  Danev S, Nikolova R, Kerekovska M, Svetoslavov S. (1997) Relationship between heart rate variability and hypercholesterolemia. Central European Journal of Public Health, 3, 5, 143-147
101.  Danev S, Datzov E, Svetoslavov S. (1997) Assessment of health risk by analysis of heart rate variability in industrial workers. Acta Medica, XXIII, 2, 17-24
102.  Danev S, Datzov E, Svetoslavov S. (1997) Pharmacologically induced sympathetic or parasympathetic influence upon cross spectrum of basic physiological functions. Comptes rendus de l�academie Bulgare des sciences, 12, 83-88
103.  Datzov, E, Danev S, Svetoslavov S. (1997) Stress evaluation: comparative assessment of the spectra of basic physiological functions. Acta Medica, XXIII, 1, 56-62
104.  ssNielsen H, Danev S. (1997) The improvement of common functional status by Hugo Nielsen method. Proc. of IIIrd World Congress on Cancer, Darwin, Australia
105.  Danev S, Svetoslavov S, Datzov E. (1997) A chronic decrease of heart rate variability can precede some cases of cancer. Proc. of III-rd World Congress on Cancer, Darwin, Australias