For citations:

Pevzner V.O., Smelyanskaya I.S. Coryphaeus of the railway track science (on the occasion to the 100th anniversary of the birth of Doctor of Technical Sciences O. P. Ershkov). RUSSIAN RAILWAY SCIENCE JOURNAL. 2017;76(4):249-252. (In Russ.) https://doi.org/10.21780/2223-9731-2017-76-4-249-252