Generating new supergravity solutions using Ehlers-Harrison-type   transformations
  The technique of generating new solutions to 4D gravity/matter systems by dimensional reduction to a sigma-model is extended to supersymmetric configurations of supergravity. The conditions required for the preservation of supersymmetry under isometry transformations in the sigma-model target space are found. Some examples illustrating the technique are given. 
H. Gustafsson, P. Haggi-Mani