Some problems of borrowing in the Russian language

This article concerns borrowings from European languages. Although the study of foreign lexics and, wider, language borrowing has its own history over a long period of time in linguistics both in Russia and abroad (one can mention the names of great scholars who dealt with this problem: Bloomfield, Scherba, Grot. Haugen) the problem of borrowing by the Russian language hasn't been solved yet. The least investigated aspect is the graphic and orthographic one.