DIJET PRODUCTION AT HERA IN NEXT-TO-LEADING ORDER

Two-jet cross sections in deep inelastic scattering at HERA are calcul ated in next-to-leading order. The QCD corrections are implemented in a new ep --> n jets event generator, MEPJET, which allows to analyze a rbitrary jet definition schemes and general cuts in terms of parton 4- momenta. First results are presented for the JADE, the cone and the k( T) schemes. For the W-scheme, disagreement with previous results and l arge radiative corrections and recombination scheme dependencies are t raced to a common origin.