00533naa#a2200181#i#450# EN\INFRA-M\bibl\15104 /en/manage/index 20251022124652.3 2500-0497 20161229b2016####ek#y0engy0150####ca RUS RU Historical and Legal Aspects of the Preliminary Contract Journal article Moscow INFRA-M Academic Publishing LLC. 2016 0 с. Journal article local Motekhina M. surgu.editorum.ru /en/manage/index