Commutative ring theory（H. Matsumura, Miles Reid）8 Commutative ring theory（H. Matsumura, Miles Reid）8 Commutative ring theory（H. Matsumura, Miles Reid）8 Commutative ring theory（H. Matsumura, Miles Reid）8 Commutative ring theory（H. Matsumura, Miles Reid）8 Commutative ring theory（H. Matsumura, Miles Reid）