ZhETF, Vol. 64,
p. 1475 (November 1973)
(English translation - JETP,
The issue content is only available in english translation.
Singularities of the cosmological model of the Bianchi IX type according to the qualitative theory of differential equations
O.I. Bogoyavlenskii, S.P. Novikov
Received: January 15, 1973