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[1]
J. Allison et al., NIM 201(1982), 341.[2] A. Franz et al., NIM 200(1982), 331.[3] Ch. Beclcer et al., NIM 200(1982), 335.
J. Allison et al., NIM 201(1982), 341.[2] A. Franz et al., NIM 200(1982), 331.[3] Ch. Beclcer et al., NIM 200(1982), 335.