For citations:

Vorkunov O.V., Ikhsanova A.I., Gainutdinova A.M. Optimum orientation of solar pv modules in kazan. Power engineering: research, equipment, technology. 2015;(11-12):26-29. (In Russ.) https://doi.org/10.30724/1998-9903-2015-0-11-12-26-29