00456naa#a2200169#i#450# EN\INFRA-M\bibl\4161 20240817171654.6 2309-3633 20141215b2014####ek#y0engy0150####ca ENG RU Undertaking Business Activity in Poland Journal article Moscow INFRA-M Academic Publishing LLC. 2014 4 с. Journal article local Lic Jan naukaru.ru