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Tohutoru Kātū Chicago (17th ed.)Logic Programming: First Russian Conference on Logic Programming, Irkutsk, Russia, September 14-18, 1990 : Second Russian Conference on Logic Programming, St. Petersburg, Russia, September 11-16, 1991 : Proceedings / A. Voronkov (ed.). 1992.
Tohutoro MLA (9th ed.)Logic Programming: First Russian Conference on Logic Programming, Irkutsk, Russia, September 14-18, 1990 : Second Russian Conference on Logic Programming, St. Petersburg, Russia, September 11-16, 1991 : Proceedings / A. Voronkov (ed.). 1992.