S.G. Chigarev, E.M. Epshtein, Y.V. Gulyaev, P.E. Zilberman, SSP, 168-169 (2010), 15
N.A. Viglin, V.V. Ustinov, T.N. Pavlov, V.M. Tsvelihovskaya, SSP, 168-169 (2010), 43
Benderskii V.A., Kats E.I., Russian Journal of Physical Chemistry B, 3:2 (2009), 264–272
JETP Letters, 88:5 (2008), 338–341