00479naa#a2200169#i#450# EN\INFRA-M\bibl\6708 20251210021859.3 1998-0701 20131017b2013####ek#y0engy0150####ca RUS RU The relevance of ethical standards for monitoring contractors Journal article Moscow INFRA-M Academic Publishing LLC. 2013 2 с. Journal article local Serkin V. zh-szf.ru