TY - BOOK AU - Caenepeel Stefaan AU - Van Oystaeyen Freddy TI - Brauer groups and the cohomology of graded rings T2 - Monographs and textbooks in pure and applied mathematics; 121 U1 - B27, M8 PY - 1988/// CY - New York PB - Marcel Dekker KW - Group Theory ER -