Non-perturbative Heavy Quark Effective Theory: a test and its matching   to QCD
  We give an introduction to the special problems encountered in a treatment of HQET beyond perturbation theory in the gauge coupling constant.   In particular, we report on a recent test of HQET as an effective theory for QCD and discuss how HQET can be implemented on the lattice including the non-perturbative matching of the effective theory to QCD. 
Rainer Sommer (DESY)