@misc{the+tests+of+development+of+poliethylen+and+residue+by+vacum+destilation+of+used+oils, author = {Machowska, Halina}, title = {The tests of development of poliethylen and residue by vacum destilation of used oils}, journal = {Czasopismo Techniczne. Chemia}, address = {Kraków}, publisher = {Wydawnictwo PK}, date = {2011}, number = {R. 108, Z. 20, 2-Ch} }