For citations:

Khakimullina L.Sh. ON THE PROBLEM OF REGISTREATING THE EMPIRICAL DRY FRICTION LOW IN ELLIPTICAL PENDULUM DYNAMICS. Power engineering: research, equipment, technology. 2016;(3-4):62-67. (In Russ.) https://doi.org/10.30724/1998-9903-2016-0-3-4-62-67