M.D.Corcoran1,M.M.Calkin1,J.H.Hoftiezer1,2,G.S.Mutchler1, M.W.Arenton3,D.S.Ayres3,R.Diebold3,E.N.May3,L.Nodulman3, J.R.Sauer3,4,A.B.Wicklund3,E.C.Swallon5 Rice University, Houston, TX1 Argonne National Laboratory, Argonne, IL3 United States of America5
Physics Letters,Section B120(1983)309