1. SNiP 2.05.06-85. Building Standards and Rules. Gas-Main Pipelines (Gos. Kom. SSSR po Delam Stroit., Moscow, 1985) [in Russian].
2. N. P. Lyakishev, M. M. Kantor, V. N. Voronin, V. N. Timofeev, and Yu. M. Sharygin, “Structural Study of a Gas-Pipeline Metal after Long Operation,” Izv. Ross. Akad. Nauk, Ser. Met., No. 1, 3–16 (2005) [Russian Metallurgy (Metally), No. 1, 2–14 (2005)].
3. Ya. B. Fridman, T. A. Gordeeva, and A. M. Zaitsev, Structure and Analysis of Metal Fracture Surfaces (Masgiz, Moscow, 1960) [in Russian].
4. N. N. Davidenkov, Problem of Impact in Physical Metallurgy (Nauk. Dumka, Kiev) Vol. 1, pp. 103–213.
5. R. Eiber, A. Daffi, and J. Mac-Clar, “Applied Importance of the Results of Falling-Load and Impact Tests of Charpy V-Notched Specimens,” in Impact Testing of Metals, Ed. by B. A. Drozdovskii and E. M. Morozov (Mir, Moscow, 1973), pp. 189–198.