Direct neutrino mass measurements

The paper reports on recent progress and developments since the neutrino '92 conference in the search for finite neutrino masses by direct mass measurements. Regarding the mass of μ- and τ-neutrino experiments have been finished and come up with somewhat improved upper bounds; the negative m2-value for the μ-neutrino could be removed mostly. Indications of a 17keV neutrino component in β-decay spectra have been disproved by a number of alternative experiments as well as by reanalysis of part of the original data.Regarding the electron neutrino mass, measurements by magnetic spectrometers are phasing out in favour of electrostatic filters with magnetic guiding fields. These experiments yielded so far a published upper limit of 7.2eV/c2, and a further improved one of 4.5eV/c2 has been communicated to this conference. The problem of negative m2-values is discussed in some detail. ((orig.))