Böszörményi, G., and L. Böszörményi. “Some Problems of the Integration of Heat Pump Technology into a System of Combined Heat and Electricity Production”. Acta Polytechnica 41, no. 2 (January 2, 2001). Accessed April 3, 2025. https://ojs.cvut.cz/ojs/index.php/ap/article/view/212.