@article{CMH_1970__45_139446,
     author = {M.A. Knus},
     title = {Alg\`ebres {d'Azumaya} et modules projectives.},
     journal = {Commentarii mathematici Helvetici},
     pages = {372--383},
     publisher = {mathdoc},
     volume = {45},
     year = {1970},
     zbl = {0205.34203},
     url = {http://geodesic.mathdoc.fr/item/CMH_1970__45_139446/}
}