00658naa#a2200169#i#450# EN\\bibl\100603 20250702012105.3 2413-1679 20250627b2025####ek#y0engy0150####ca RU THE PROBLEM OF BILINGUALISM, DIGLOSSIA AND LANGUAGE CONTACT IN RUSSIAN AND FOREIGN LINGUISTICS Journal article Simferopol V.I. Vernadsky Crimean Federal University 2025 8 с. Journal article local Языкознание. Филология. Художественная литература. Литературоведение. 8 Shiyan M. V. cfuv.editorum.ru