Homogeneous magnetic fields in fully anisotropic string cosmological   backgrounds
  We present new solutions of the string cosmological effective action in the presence of a homogeneous Maxwell field with pure magnetic component. Exact solutions are derived in the case of space-independent dilaton and vanishing torsion background. In our examples the four dimensional metric is either of Bianchi-type III and VI$_{-1}$ or Kantowski-Sachs. 
Massimo Giovannini (Institute for Theoretical Physics, Lausanne   University)