00557naa#a2200169#i#450# EN\NORMA\bibl\44970 20260227100608.5 1605-6590 20210708b2021####ek#y0engy0150####ca RU On the Definition of the “Life Cycle Contract” Concept in Russian Legislation Journal article Moscow Legal publishing house Norm 2021 0 с. Journal article local Право. Юридические науки. 34 Dimitriev Ruslan Stepanovich zh-szf.ru