The Fourth International Workshop on Neutrino Oscillations and their Origin, Kanazawa, Japan, 10-14 February 2003

Status and Future Prospects of Reactor Neutrinos, Solar Neutrinos, and Supernova Neutrinos Status and Future Prospects of Long Baseline Neutrino Experiments, Atmospheric Neutrinos Dark Matter Searches and Double Beta Decays Lepton Number Violated Muon Decays Proton Decay Searches Neutrino Phenomenology and Model Building.