JETP, Vol. 33,
No. 3,
p. 600 (September 1971)
(Russian original - ZhETF,
Vol. 60,
No. 3,
p. 1109,
September 1971
)
Phenomenological Theory of Dielectric Anomalies in Ferroelectric Materials with Several Phase Transitions at Temperatures Close Together
A. P . Levanyuk, D. G . Sannikov
Received: September 28, 1970
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