Sentence:  The Erzya and Moksha population, especially in urban areas, has become increasingly exposed to Russian; within this context, both the <WSD>literary languages</WSD> and the dialects have been affected to a considerable extent. In the course of being update the <WSD>literary languages</WSD> have experienced radical changes. An abundance of Russian terminology has been introduced in dictionaries; grammars have been prescribing the use of concurrent forms of the native and Russian languages as a norm. 
Meaning of the word marked with <WSD> tags:  A language variety used as an institutional norm in a community, opposed to vernacular dialects; a standard language.<ref name=:0>(url=https://books.google.com/books?id=1TtvBAAAQBAJ)</ref><ref>H. Schuster-S̆ewc, "Grammar of the Upper Sorbian Language: Phonology and Morphology", Lincom Europa, 1996, p. 249, (978-3-89586-0591)</ref>