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@BOOK{ObchTech93, title = "Îá÷èñëþâàëüíà ³ ïðèêëàäíà ìàòåìàòèêà: Çá.íàóê.ïð.", address = "Ê.", publisher = "Ëèá³äü", year = 1993, numpages = 99, language = "ukrainian" }