Classification
HDG - Psychology, psychiatry
209
YRB - Social sciences, sociology
19
HDE - Neurology - general aspects
12
YRA - Social studies
10
HAA - Medicine - reference books
9
LGO - Sociobiology, ethology
6
YPG - Business management
6
YRC - Technology and society
6
AHP - Philosophy
5
HDF - Brain - anatomy, function, disorders
5
HDH - Neuropsychology
5
HWP - Gerontology, geriatrics
5
HYG - Occupational medicine, sports medicine
5
HDS - Neurophysiology, neuroanatomy
4
HYB - Public health, health politics
4
LGT - Neurobiology, neurophysiology
4
AHPC - Ethics
3
DZC - Man and computer
3
HAN - Medicine - mathematical methods, computer applications, databases
3
MWH - Statistics
3
YRAB - Gender studies
3
AHK - Scientific work
2
EPK - Nuclear energy
2
HAM - Medicine - theoretical and philosophical fundamentals
2
LAM - Biology - theoretical and philosophical fundamentals
2
MWE - Decision theory, game theory
2
YPB - Economy - general aspects
2
YPGE - Human resource planning, human resource management
2
AHL - Presentations, lectures, discussions
1
AHN - Media and communication science
1
AHPD - Epistemology
1
AMA - Education - general
1
AMAB - Industrial training, further education
1
DNC - Internet
1
DYA - Artificial intelligence
1
DYBK - Biocybernetics
1
GRBA - Climatology - general
1
H
1
H - Medicine ( journals )
1
HAA - Medicine - reference books
1
HDA - Neurophysiology, neurology - reference books
1
HDG - Psychology, psychiatry
1
HPK - Special pharmacology, drug design
1
HYM - Forensic medicine
1
MSH - Mathematical methods in life sciences
1
MWHH - Numerical and graphical methods in statistics
1
UAX - Environment - information systems, literature guides
1
UCA - Environmental problems, man and environment - general aspects
1
UCJ - Environmental protection - general aspects
1
UCN - Environmental education
1
more ...