TY - BOOK AU - Oystaeyen F Van AU - Verschoren A TI - Relative invariants of rings: The noncommutative theory T2 - Monographs and textbooks in pure and applied mathematics; 86 U1 - B239MR, M4 PY - 1984/// CY - New York PB - Marcel Dekker KW - Invariants KW - Noncommutative rings N1 - Bibliography 270-279p ER -