Production and Testing of Butyl and Methyl Esters as New Generation Biodiesels from Fatty Wastes of the Leather Industry. - Kurczyński, Dariusz; Wcisło, Grzegorz; Leśniak, Agnieszka; Kozak, Miłosław; Łagowski, Piotr (Energies (19961073), 2022)