1. D. V. Vainberg, E. A. Gotsulyak, V. I. Gulyaev, and S. K. Nikitin, ?Elastic equilibrium of a spiral shell of variable circular profile,?, Sopr. Mater. Teor. Sooruzh.,15, 54?60 (1971).
2. L. B. Grimze, T. B. Il'ina, and I. E. Kadomskaya, ?Design of a metallic volute chamber with allowance for the resistance of the concrete and the compliance of the stator,? The Finite Elements Method and Structural Mechanics [in Russian], Leningrad Polytechnic Inst. (1974), pp. 143?150.
3. I. E. Kodomskaya, ?Study of the stress-strain state of a reinforced concrete volute chamber with a metallic lining,? in: The Finite Elements Method and Structural Mechanics [in Russian], Leningrad Polytechnic Inst. (1979), pp. 102?106.
4. A. Ya. Aronson, V. V. Gaidaichuk, and V. I. Gulyaev, ?Numerical analysis of the effect of inaccuracies in the manufacture of complex structural shells on their stress state,? Mashinovedenie, No. 6, 51?56 (1980).
5. K. F. Chernykh, Linear Theory of Shells [in Russian], Leningrad State Univ. (1964). Pt. II.