OBSERVATION OF HARD SCATTERING IN PHOTOPRODUCTION EVENTS WITH A LARGE RAPIDITY GAP AT HERA (Physics Letters B, 1995)

(untitled) - Derrick, M; Krakauer, D; Magill, S; Musgrave, B; Repond, J; Schlereth, J; Stanek, R; Talaga, R; Thron, J; Arzarello, F; Ayad, R; Bari, G; et al.