Shyshchak, Olena2014-12-052014-12-052014Shyshchak O. VIIth International scientific-technical conference “Advance in petroleum and gas industry and petrochemistry” (APGIP-7) / Olena Shyshchak // Chemistry & Chemical Technology. – 2014. – Volume 8, number 3. – P. I–II.https://ena.lpnu.ua/handle/ntb/25489enArticle