1. SNIP 2.05.06-85, Engineering Standards and Rules. Transmission Pipelines [in Russian], Moscow (1985).
2. E. M. Moshnin, Bending and Straightening in Rotating Machines [in Russian], Mashinostroenie Moscow (1967).
3. V. N. Skopinskii, “Strength analysis of joints in shells and dished ends with nozzles through a flange,” Khim. Neft. Mashinostr., No. 7, 18–20 (1993).