@article{10_4171_dm_207,
     author = {Claude Cibils and Andrea Solotar},
     title = {Galois coverings, {Morita} equivalence and smash extensions of categories over a field.},
     journal = {Documenta mathematica},
     pages = {143--159},
     year = {2006},
     volume = {11},
     doi = {10.4171/dm/207},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/207/}
}