참고문헌
- J. Algebra 163 Projective Schur division algebras are abelian crossed products E. Aljadeff;J. Sonn
- Trans. Amer. Math. Soc. v.97 The Brauer grop of a commutative ring M. Auslander;O. Goldman
- Comm. in Algebra v.26 no.5 Projective Schur division algebras E. Choi;H. Lee
- Bull. Austral. Math. Soc. v.58 Projective Schur algebras over a field of positive characteristic E. Choi;H. Lee
- Rocky Mountain J. of Math. v.6 no.2 The Brauer group of a ring modulo an ideal F. DeMeyer
- Lecture notes in mathematics v.181 Separable algebras over commutative rings F. DeMeyer;E. Ingraham
- J. Pure and Appl. Algebra v.35 The Schur group of a commutative ring F. DeMeyer;R. Mollin
- Math. Z. v.162 Einfache Algebren und Projektive Darstellungen uber Zahlkopern F. Lorenz;H. Opolka
- Lecture notes in pure and appl. math. v.11 The Brauer group of commutative rings M. Orzech;C. Small
- Maximal orders I. Reiner
- Lecture notes in mathematics v.397 The Schur subgroup of the Brauer group T. Yamada