For citations:
. Proceedings of the Voronezh State University of Engineering Technologies. 2013;(3):72-75. (In Russ.) https://doi.org/10.20914/2310-1202-2013-3-72-75
. Proceedings of the Voronezh State University of Engineering Technologies. 2013;(3):72-75. (In Russ.) https://doi.org/10.20914/2310-1202-2013-3-72-75