%0 Journal Article %A Claude Cibils %A Andrea Solotar %T Galois coverings, Morita equivalence and smash extensions of categories over a field. %J Documenta mathematica %D 2006 %P 143-159 %V 11 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/207/ %R 10.4171/dm/207 %F 10_4171_dm_207