-
[1]
W. Pauli, " Festschrift zum 60 Geburtstage”; A. Sommerfelds, Hirzel, Leipzig (1928), 30.[2] L. Van Hove, Physica, 21 (I955), 517; 23 (1957), 441; 25(1959), 268. L. Van Hove, "in Proc-NUFFIC Inter. Summer Course in Science", Netherlands, (1961).[3] U. Fano, Rev. Mod. Phys., 29(1957), 74.[4] R. Zwanzig, Physica, 30(1964), 721.[5] D. Agassi, H. A, weidenmüller and G. Mantzouranis, Phys. Reports., 22C(1975), 145.