참고문헌
- Homological Algebra Cartan, H.;Eilenberg, S.
- Math. Scand. v.36 The structure of indecomposable injective modules Fossum, R.
- Lessons on Rings, Modules and Multiplicities Northcott, D.G.
- J. London Math. Soc. (2) v.8 Injective envelopes and inverse polynomials Northcott, D.G.
- J. London Math. Soc. (2) v.11 Ramification indices and injective modules Sharp, R.Y.
- Steps in commutative algebra, London Mathematics Society Student Texts 19 Sharp, R.Y.
- J. Korean Math. Soc. v.32 Generalized fractions, Galois theory, and injective envelopes of simple modules over polynomial rings Song, Y.M.
- Comm. Korean Math. Soc. v.8 Distinct denominator sums and injective envelops Song, Y.M.;Kim, D.S.
- Injective Modules Sharp, D.W.;Vamos, P.