Natalia Iwaszczuk, Marta Szyba, Myroslava Mylenka. (2019). USING ALTERNATIVE SOURCES OF METHANE FOR ENERGY AS A METHOD OF ENVIRONMENTAL PROTECTION AND IMPROVEMENT OF ECONOMY CONDITION, ON EXAMPLE OF POLAND. ACTA INNOVATIONS, 33, 90–99. https://doi.org/10.62441/actainnovations.v33i.202