2022. Thermal calculation of heat pump for two types of working conditions. Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XIV, Inginerie mecanică = Annals of “Dunarea de Jos“ University of Galati. Fascicle XIV, Mechanical Engineering. 26, 1 (août 2022), 15–18. DOI:https://doi.org/10.35219/https://doi.org/10.35219/im.2019.1.03.