BACKWARD PRODUCTION OF A SPIN PARITY 1+RHOPI ENHANCEMENT AT 1.04 GEV - Gavillet, P; Berge, P; Ferrando, A; Hemingway, R; Holmgren, S; Losty, M; Marin, J; Montanet, L; Pagiola, E; Yamdagni, N; Blokzijl, R; Jongejans, B; et al. (Physics Letters B, 1977)