For citations:

Pleshivtseva Yu.E., Afinogentov A.A. Optimization of isothermal extrusion of aluminum alloy billets with gradient preheating. Izvestiya. Non-Ferrous Metallurgy. 2016;(2):49-57. (In Russ.) https://doi.org/10.17073/0021-3438-2016-2-49-57