3-Loop Heavy Flavor Corrections to DIS with two Massive Fermion Lines
  We report on recent results obtained for the massive operator matrix elements which contribute to the massive Wilson coefficients in deep-inelastic scattering for $Q^2 \gg m_i^2$ in case of sub-processes with two fermion lines and different mass assignment. 
J. Ablinger, J. Bl\"umlein, S.Klein, C. Schneider, F. Wissbrock
hep-ph hep-ex