Minimal injective resolutions with applications to dualizing modules and Gorenstein modules Robert Fossum, Hans-Bjorn Foxby, Phillip Griffith, Idun Reiten (1975) Publications Mathématiques de l'IHÉS
More on the Schur group of a commutative ring. Mollin, R.A. (1985) International Journal of Mathematics and Mathematical Sciences
More on the Schur group of a commutative ring. Mollin, R.A. (1985) International Journal of Mathematics and Mathematical Sciences