Inelastic leptoproduction of J/psi mesons at HERA - Adloff, C; Andreev, V; Andrieu, B; Anthonis, T; Astvatsatourov, A; Babaev, A; Bahr, J; Baranov, P; Barrelet, E; Bartel, W; Becker, J; Beckingham, M; et al. (2002)