
JETP, Vol. 82,
No. 5,
p. 929 (May 1996)
(Russian original - ZhETF,
Vol. 109,
No. 5,
p. 1724,
May 1996
)
Covalent mechanism of cooperative optical transitions and energy transfer in systems with paired lanthanide ions
V.S. Mironov, A.A. Kaminskii
Received: July 28, 1995
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