@article{JRAM_1981__321_152315,
     author = {B. Fein and M. Schacher},
     title = {Relative {Brauer} {Groups.} {I.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {179--194},
     publisher = {mathdoc},
     volume = {321},
     year = {1981},
     zbl = {0436.13003},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1981__321_152315/}
}