ZhETF, Vol. 98,
p. 978 (September 1990)
(English translation - JETP,
The issue content is only available in english translation.
First and second order phase transitions in YBa2Cu3O6+x due to redistribution of oxygen along the chains at low temperatures
L.G. Mamsurova, K.S. Pigal'skii, V.P. Sakun, A.I. Shushin, L.G. Shcherbakova
Received: December 12, 1989