« Thermal calculation of heat pump for two types of working conditions ». 2022. 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): 15-18. https://doi.org/10.35219/https://doi.org/10.35219/im.2019.1.03.