[1] . Holm E:Int J Appl Radiat Isot 1984, 35:285.
[2] . Regge PDe, et al:Nucl lnstrum Methods Phys Res 1984, 223:181.
[3] . Gavini MB, et al:J Radioanal Chem 1981, 67:437.
[4] . Narayani P, et al:Talanta 1983, 30:271.
[5] . Sachett IA, et al:Health Phys 1984, 46:133.
[6] . Wrenn ME, et al:Anal Chem 1978, 50:1712.
[7] . Yamato A:J Radioanal Chem 1982, 75:265.
[8] . Mathew E, et al:J Radioanal Chem 1981, 62:267.
[9] . Anderson RF, et al:Anal Chem 1982, 54:1142.
[10] . Sill CW, et al:Anal Chem 1979, 51:1307.
[11] . Bernabee RP:Health Phys 1983 44:688.
[12] . Sekine K, et al:Talania 1987, 34:567.
[13] . Joshi LU, et al:J Radioanal Chem 1983, 76:73.
[14] . Higuchi H, et al:Anal Chem 1984, 56:761.
[15] . Gies RA, et al:Health Phys 1984, 46:928.
[16] . Case GN, et al:Talanta 1982, 29:845.