@article{05022761,
title = {Galois coverings, Morita equivalence and smash extensions of categories over a field.},
journal = {Documenta Mathematica},
volume = {11},
year = {2006},
pages = {143-159},
zbl = {1099.16017},
language = {en},
url = {http://dml.mathdoc.fr/item/05022761}
}
Cibils, Claude; Solotar, Andrea. Galois coverings, Morita equivalence and smash extensions of categories over a field.. Documenta Mathematica, Tome 11 (2006) pp. 143-159. http://gdmltest.u-ga.fr/item/05022761/