- Cryptology 44
- Algorithm Analysis and Problem Complexity 25
- Computer Communication Networks 22
- Management of Computing and Information Systems 20
- Operating Systems 18
- Coding and Information Theory 17
- Discrete Mathematics in Computer Science 14
- Combinatorics 9
- Computers and Society 9
- Theory of Computation 9
- Computational Mathematics and Numerical Analysis 8
- Probability Theory and Stochastic Processes 7
- IT in Business 6
- Statistics, general 5
- Systems and Data Security 4
- Mathematical Logic and Formal Languages 3
- Mathematics of Computing 3
- Programming Techniques 3
- Algorithms 2
- Communications Engineering, Networks 2