by Grinberg, S. M., Lur'e, A. E., Rotmistrov, Yu. P.
Published in Strength of materials (01.03.1976)

by Andreev L N, Ber M N, Egorov A A, Kamelin R V, Lur’e E A, Prokhorov A A, Strihanov M N, Selihovkin A V
Published in Hortus botanicus (01.12.2006)