.

Karelin , N. T. and Sergeev , O. I. (1981) “Application of modernized cars VD-5,6 at the mine "Leningradskaya" of the production association "Leningradslanets".”, Journal of Mining Institute, 88, p. 47. Available at: https://pmi.spmi.ru/pmi/article/view/10884 (Accessed: 25 April 2025).