00458naa#a2200169#i#450# EN\NORMA\bibl\1545 20250111201759.6 1605-6590 20140319b2014####ek#y0engy0150####ca RUS RU "Effective Contract» in Labor Law Journal article Moscow Legal publishing house Norm 2014 8 с. Journal article local Eremina Svetlana naukaru.ru