@article{GDZPPN002539853,
title = {A note on perfect modules over crossed products},
journal = {Revista colombiana de matematicas},
volume = {10},
year = {1976},
pages = {69-74},
zbl = {0333.16027},
url = {http://dml.mathdoc.fr/item/GDZPPN002539853}
}
Osterburg, James. A note on perfect modules over crossed products. Revista colombiana de matematicas, Tome 10 (1976) pp. 69-74. http://gdmltest.u-ga.fr/item/GDZPPN002539853/