Abdulina , Z., Yerdesh , Y. ., Toleukhanov , A. ., Mohanraj , M. ., Rattner , A. . and Belyayev, Y. (2025) “Solar Assisted Auto-Cascade Heat Pump for Water Heating in the Continental Climates”, International Journal of Mathematics and Physics, 16(2). doi: 10.26577/ijmph.20251627.