Problems of Control and Information Theory 20. (Budapest, 1991)
1991 / 1. szám
516921) ACADEMY OF SCIENCES OF THE USSR HUNGARIAN ACADEMY OF SCIENCES CZECHOSLOVAK ACADEMY OF SCIENCES АКАДЕМИЯ НАУК СССР 1991 ВЕНГЕРСКАЯ АКАДЕМИЯ НАУК ЧЕХОСЛОВАЦКАЯ АКАДЕМИЯ НАУК AKADÉMIAI KIADÖ, BUDAPEST DISTRIBUTED OUTSIDE THE COMECON-CÖUNTRIES BY PERGAMON PRESS, OXFORD / VOL. ТОМ20 NUMBER НОМЕР1