Problems of Control and Information Theory 19. (Budapest, 1990)
1990 / 1. szám
IVté.SlO >iy^0 VOL. ТОМ19 • NUMBER НОМЕР1 ACADEMY OF SCIENCES OF THE USSR HUNGARIAN ACADEMY OF SCIENCES CZECHOSEOVAK ACADEMY OF SCIENCES АКАДЕМИЯ НАУК СССР 1990 ВЕНЕЕРСКАЯ АКАДЕМИЯ НАУК ЧЕХОСЛОВАЦКАЯ АКАДЕМИЯ НАУК AKADÉMIAI KIADÓ, BUDAPEST DISTRIBUTED OUTSIDE THE COMECON-COUNTRIES BY PERGAMON PRESS, OXFORD