OBSERVATION OF HARD SCATTERING IN PHOTOPRODUCTION AT HERA (Physics Letters B, 1992)

(untitled) - Derrick, M; Krakauer, D; Magill, S; Musgrave, B; Repond, J; Sugano, K; Stanek, R; Talaga, R; Thron, J; Arzarello, F; Ayed, R; Barbagli, G; et al.