TY JOUR TI Questions of the Validity of Granting Tariff Preferences in Respect of Goods Imported from Developing and Least Developed Countries KW the origin of goods KW tariff preferences KW developing and least developed countries KW the level of economic development KW the import of goods without payment of customs duties KW customs control. JO Auditor AU Gubin, A.V. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.