1. A. Ya. Aleksandrov, M. Kh. Akhmetzyanov, G. N. Albaut, and V. N. Baryshnikov, ?Polarized light investigations for large strains,? Zh. Prikl. Mekh. i Tekhn. Fiziki, No. 5 (1969).
2. S. A. Alekseev, ?Foundations of the theory of flexible shells,? in: Calculation of Three-Dimensional Structures [in Russian], No. 11, Gosstroiizdat, Moscow (1967).
3. R. L. Aliev, A. M. Lokoshchenko, and S. A. Shesterikov, ?The large deflections of a nonlinear elastic ring under external pressure,? Vestnik MGU, Matematika i Mekhanika, No. 3 (1969).
4. V. L. Berdicheskii, ?Construction of models of solid media by means of the variational principle,? Prikl. Matem. i Mekh.,30, No. 3 (1966).
5. V. L. Biderman, ?Problems of calculating rubber elements,? in: Strength Calculations [in Russian], No. 3, GNTI, Moscow (1958).