STACS 88 5th Annual Symposium on Theoretical Aspects of Computer Science, Bordeaux, France, February 11-13,1988; Proceedings Cori Robert Heftet / 1988 / Engelsk
STACS 89 6th Annual Symposium on Theoretical Aspects of Computer Science, Paderborn, FRG, February 16-18, 1989; Proceedings Monien Burkhard Heftet / 1989 / Engelsk
