Dzenzersky, V. A., S. V. Plaksin, N. E. Zhitnik, and L. M. Pogorelaya. 2009. “METHOD OF CHARGING CHEMICAL SOURCES OF CURRENT IN THE COMPOSITION OF PHOTOELECTRIC INSTALLATION”. Electrical Engineering and Power Engineering, no. 2 (December). http://ee.zntu.edu.ua/article/view/102818.