00564naa#a2200169#i#450# EN\\bibl\23816 20260311105748.3 2312-4431 20181227b2018####ek#y0engy0150####ca RUS RU HISTORICAL BACKGROUND FOR THE INCLUSIVE EDUCATION DEVELOPMENT Journal article Cheboksary Non-state educational private institution of additional professional education "Expert-methodological centre" 2018 5 с. Journal article local Syabryuk Nadezhda A. zh-szf.ru