Problems and prospects of territories’ socio-economic development. International scientific conference. Problems and prospects of territories’ socio-economic development : conference proceedings of the 6th international scientific conference : april 20 - 23, 2017, Opole, Poland. Reviewers: Marian Ciepaj, Pavlo Zakharchenko. 1st ed. Opole : Publishing House WSZiA, 2017. online [272 s.]. ISBN 978-83-62683-10-9.