TY - JOUR A1 - Kurpaska, Sławomir A1 - Latała, Hubert A1 - Łapczyńska-Kordon, Bogusława A1 - Mudryk, Krzysztof PB - The Lublin Branch of the Polish Academy of Sciences L2 - http://www.journals.pan.pl/Content/91743 PY - 2012 IS - No 1 T1 - Efficiency of the heat pump cooperating with various heat sources in monovalent and bivalent systems UR - http://www.journals.pan.pl/dlibra/publication/edition/91743 T2 - Teka Commission of Motorization and Power Industry in Agriculture ER -