Polynomial Approximation of Celestial Coordinates to Find the Kinematic Properties of Electrotechnical Complexes Equipped with Sun Tracking Systems
Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ Ènergetika/Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Ènergetika