See also: S.V. Shabanov, M.A. Shifman, M.K. Volkov, V.L. Ginzburg, D.V. Shirkov, D.I. Blokhintsev
PACS: 11.15.-q, 11.10.Ef, 11.10.-z, 12.20.-m, 03.65.Sq, 03.65.Ge, 12.20.Ds