[1] Gudelev V G,Izmailov A Ch,Yasinskii V M.Sov J Q E,1988;18(2):166~171
[2] Bretenaker F,Floch A Le.J O S A,1991;B8(2):230~238
[3] Basov N G,Gubin M A,Nikitin V V et al.Sov J Q E,1984;14(6):
[4] Yang S,Zhang S L.Opt Commun,1988;68(1):55~57
[5] Zhang S,He W K.Opt Commun,1993;97(3):210~214
[6] Katuo S,Tadanao O.ishi.Appl Opt,1990;29(3):354~359