1. Zhukova A.C., Schwartz D.L., The determing of thermo mecanical coefficients for steel grades as st6 and 20. B.N. Yeltsin First President of Russia (UrFU, Ekaterinburg, Russia, 2014)
2. Krivoshchapov V.V., Zhelezkov O.S., Levchenko P.E. et al., Hot stamping of fasteners (Magnitogorsk, Magnitogorsk State Technical University named after G.I. Nosov, 1997)