00747nam0-22002651i-450-990001186750403321000118675FED01000118675(Aleph)000118675FED0100011867520000920d1982----km-y0itay50------baengGraded ring theoryby NASTASESCU C. NASTASESCU C.Amsterdam [etc.]North-Holland1982North-Holland mathematical library2Nastasescu,Constantin54151Van Oystaeyen,F.ITUNINARICAUNIMARCBK990001186750403321C-32-(2821456MA1MA1Graded ring theory342672UNINAING01