2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45345We present a first status report on a broad and systematic study of possible manifestations of QCD-instantons at HERA. Considerable motivation comes from the close analogy between instanton-induced $B+L$ violation in electroweak processes and effects of QCD-instantons in deep inelastic scattering. We concentrate on the high multiplicity final state structure, reminiscent of an isotropically decaying ``fireball''. A set of experimental isolation criteria is proposed. They serve to further enhance the striking event signature without significantly suppressing the expected rates.32 pages, latex, epsfig, 11 uuencoded figuresHigh Energy Physics - Phenomenologytext