J.B.Mcclelland1,J.M.Moss1,B.Aas2,A.Azizi2, E.Bleszynski2,M.Bleszynski2,J.Geaga2,G.Igo2,A.Rahbar2, J.B.Wagner2,G.S.Weston2,C.Whitten-Jr.2,K.Jones3, S.Nanda3,M.Gazzaly4,N.Hintz4 Los Alamos National Laboratory, NM1 University of California, Los Angeles, CA2 Rutgers University, New Brunswick, NJ3 University of Minnesota, Minneapolis, MN4
Physical Review Letters52(1984)98