• [1]

    G. Battistoni et al., NIM, 164(1979), 57.[2] G. D. Alekseev et al, NIM, 177(1980), 385[3] Al. Atac et al , NIM 200(1982), 345.[4] E.P. de Lima et al., IEEE Trans, NS-30(1983),[5] C. Bacci et al., Phys. Lett., 86B(1979), 2.[6] B. Grelaud et al., LAL preprient 78/25 (1978).[7] G. Battistoni et al., NIM, 176(1980), 297.[8] G. httistoni et al., LNF-82/16 (p) (1982).[9] G. Battistoni et al., NIM 152(1978), 423.[10] M. Jonker et al., CERN-EP/80-101 (1980).[11] ALEPH Collaboration Technical Report ( 1983).[12] G. Bzttistolri et al, LNF-78/16 (1978)