For citations:

Mashkov A.V. TO A QUESTION OF APPROXIMATE CALCULATIONS OF A STATIONARY FIELD OF TEMPERATURES IN A WALL OF THE ELLIPTIC CYLINDER OF EQUAL THICKNESS BY A VARIATIONS METHOD. Alternative Energy and Ecology (ISJAEE). 2015;(17-18):112-118. (In Russ.) https://doi.org/10.15518/isjaee.2015.17-18.016