"Computers and Society." . . "Computer Communication Networks." . . "Computer Science." . . "Computer science." . "Operating Systems." . . "Operating systems." . "International Workshop on Mathematical Methods, Models and Architectures for Computer Network Security (Sankt-Petersburg) (2005)" . . . "Rechnernetz Computersicherheit Datensicherung Kongress Sankt Petersburg <2003>" . . "Computersicherheit." . . "Computersicherheit" . "International Workshop on Mathematical Methods, Models and Architectures for Computer Network Security <2, 2003, Sankt-Peterburg>" . . . "Information Systems." . . "Rechnernetz." . . "Rechnernetz" . "Computer software." . . "Data Encryption." . . "Data encryption." . "International Workshop on Mathematical Methods, Models and Architectures for Computer Network Security (Sankt-Petersburg) (2003)" . . . "Management of Computing and Information Systems." . . . . . . . "Kongress" . . . "Computer network security proceedings" . . . . . . . . . . . . . . . . "Computer network security : proceedings" . . . . . . . . . . . . . . . . . "Online-Publikation" . . . "Datensicherung." . . "Datensicherung" . "Computer Appl. in Administrative Data Processing." . . "International Workshop on Mathematical Methods, Models and Architectures for Computer Network Security <3, 2005, Sankt-Peterburg>" . . . "Algorithm Analysis and Problem Complexity." . . . . "International Workshop on Mathematical Methods, Models and Architectures for Computer Network Security." . . .