ZhETF, Vol. 89,
p. 922 (September 1985)
(English translation - JETP,
The issue content is only available in english translation.
Classification of degeneracies and analysis of their stability in the theory of elastic waves in crystals
V.I. Al'shits, A.V. Sarychev, A.L. Shuvalov
Received: December 26, 1984