00674naa#a2200193#i#450# EN\NORMA\bibl\20016 20240828144544.3 1991-3222 20180219b2018####ek#y0engy0150####ca RU SUBSTANTIAL CHANGE IN CIRCUMSTANCES AS A BASIS FOR CHANGING OF CONTRACT CONDITIONS Journal article Moscow Legal publishing house Norm 2018 0 с. Journal article local Право. Юридические науки. 34 Право. Юридические науки. 67 bbk Loginova Anastasiya Sergeevna Sinicyna Mariya Andreevna naukaru.ru