Measurements of dijet cross sections for virtual photons are presented as a
function of \xo, the fraction of the virtual photon energy invested in the
production of the dijet system, using the ZEUS detector. Comparisons to QCD
predictions show that a resolved photon component is needed to describe the
data up to values of the photon virtuality comparable to the scale of the
interaction.Comment: 9 pages, 6 figures. Talk given at the International Conference on the
Structure and Interactions of the Photon (PHOTON 2000), Ambleside, UK, August
26-31, 200
