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ÊÓÐÃÀÍΠÊÓÐÃÀÍΠÍèêîëàé Ãàâðèëîâè÷ (1725?-96), ïðîñâåòèòåëü, ïåäàãîã, èçäàòåëü. Àâòîð ó÷åáíèêîâ ïî àðèôìåòèêå, ãåîìåòðèè, ðóññêîìó ÿç. ("Ðîññèéñêàÿ óíèâåðñàëüíàÿ ãðàììàòèêà", 1769, â ïîñëåäóþùèõ èçäàíèÿõ - "Ïèñüìîâíèê" - ýíöèêëîïåäèÿ ñàìîîáðàçîâàíèÿ). Ïåðåâ¸ë "Ýëåìåíòû ãåîìåòðèè" Åâêëèäà.