We review our on-going theoretical and phenomenological investigation of the
prospects to discover QCD-instantons in deep-inelastic scattering at HERA.Comment: 18 pages, 15 figures; contribution to the Ringberg Workshop ``New
Trends in HERA Physics'', Ringberg Castle, Tegernsee, Germany, May 30 - June
4, 1999; to be published in the proceeding
