- Computer Communication Networks (6)
- Computer Science (6)
- Software Engineering (6)
- System Performance and Evaluation (6)
- Information Systems Applications (incl.Internet) (4)
- Communications Engineering, Networks (2)
- Computer Systems Organization and Communication Networks (2)
- Logics and Meanings of Programs (2)
- Algorithm Analysis and Problem Complexity (1)
- Computers and Society (1)
- Models and Principles (1)
- Probability and Statistics in Computer Science (1)
- Simulation and Modeling (1)