Alekseyenko, T.T.AlekseyenkoSerdyuk, O. V.O. V.SerdyukPoperechna, N. V.N. V.Poperechna2013-06-122013-06-122013-06-12http://ir.nmu.org.ua/handle/123456789/2050enBLACK MARKETBLACK MARKET: WHAT IS IT?Article