[1] Alcook,A.J.,Kichardson,M.C.Opt.Comm.,1970,No.2,P.65.
[2] Scott,J.C.,Palmer,A;W.Jphys E,Sci.Iristy.,1978.No.11,P.901.
[3] Ireland,C.L.M.J.Phys E,Sci.Instr.,1975,No.8,P.1007.
[4] Machewirth,J.P.Laser Focus,1977.3,P.81.
[5] Antonetti,A.,Malley,M.N.,Mourou,G,,Orszag,A,Opt.Comet,,1977,No.23,P.435.
[6] Platte,W,Optics and Laser Technol.,1978,Vol.10,No.1,P.40.
[7] Yariv,A.Quantum Electronics' (J,wiley and Sons,New York,1975) Chapter 14.
[8] Sargent,W,J,,Alcock,A,J,Rev,Sci.Instr,,1976,No.47,P.1283.