References
- Comm. Algebra v.17 Properties of direct summand of modules J. L. Garcia
- Bull. Inst. Math. Acad. Sinica v.9 Direct projective modules J. Hausen
- Comm. Algebra v.17 Modules with the summand intersection property J. Hausen
- Canad. J. Math. v.28 Semiregular modules and rings W. K. Nicholson
- Bull. Inst. Math. Acad. Sinica v.7 Direct projective modules A. K. Tiwary;P. C. Bharadwaj
- Comm. Algebra v.14 Modules with the summand intersection property G. V. Wilson
- J. Pure Appl. Algebra v.87 Characterization of rings using direct-projective modules and directinjective modules W. Xue