1. Select a main division (A-Z).
2. A detailed set of divisions refers you to a given set of records in the ALEPH catalogue.
A. General

B. Management. Economic sciences

C. Mathematics

D. Physics

E. Chemistry

F. Earth sciences. Geodesy

G. Mechanics

H. Machine technology. Manufacturing technology

I. Electrical engineering. Power engineering

J. Electronics

K. Computer sciences
- 0 General reference
- 1 Fundamentals of computer science. Computer architecture
- 2 Artificial intelligence
- 3 Operating systems. Concurrent programming
- 4 Software engineering. Programming languages
- 40 General studies
- 41 Software engineering
- 42 Procedural programming languages. Object programming languages (Pascal, C, C++, C#, Objective C, Modula 2, Java, Python)
- 43 Functional languages (Lisp, Scheme, SML, Haskell, F#, OCaml)
- 44 Declarative programming languages (Prolog, Visual Prolog)
- 45 Scripting languages (JavaScript, JScript, VBScript, Perl, PHP)
- 46 Low-level programming languages (symbolic languages, assemblers, macro assemblers)
- 47 Domain-specific language (Matlab, ENBF, Flex, Yacc). Languages for special purposes
- 48 Tag-based languages (LaTex, SGML, HTML, XML, XAML, CSS)
- 49 Compilers. Framework (Eclipse, Visual Studio, Delphi, KDevelop)
- 5 Databases
- 6 Computer networks. Network protocols
- 7 Network security. Computer system security
- 8 Computer graphics. Image processing
- 9 Functional computer programmes

L. Building industry

M. Transport
NOTE: Logistics see: division B24

N. Biological sciences. Biotechnology. Medicine

O. Printing technology

P. Law. Social sciences. Political science

R. Materials engineering. Materials science

S. Physical planning. Architecture. Arts
W. Environmental engineering. Environmental protection

Z. Science. Technology. History
