Low mass muon pair production in 450 GeV p-Be collisions / Robert Jan VeenhofProduction of tau pairs at the Z resonance / Xaverius Jacques Maria LeijtensStudy of neutral current coupling constants from tau pair production / Monty Pieter IJzermanPerturbative QCD and lepton pair production / [door] Adrianus Norbertus Jacobus Jozef SchellekensPion and Kaon pair-production in photon-photon collisions / Willem Gerhardus Johannes LangeveldStudy of Tau-pairs and search for new particles / door Marcellinus Wilhelmus Johannus Marie Demarteau