COMPARISON OF PPBAR AND PP INTERACTIONS AT SQUARE-ROOT S= 53 GEV - Alpgard, K; Ansorge, R; Asman, B; Berglund, S; Bertrand, D; Bockmann, K; Booth, C; Buffam, C; Burow, L; Carlson, P; Carter, J; Chevalley, J; et al. (1982)