1. Algebraic K-Theory;Bass,1968
2. Torsion-free and projective modules;Bass;Trans. Amer. Math. Soc.,1962
3. Seminormalita e singolarita ordinarie;Bombieri,1973
4. On the geometric interpretation of seminormality;Davis,1978
5. Projective modules over polynomial rings;Endo;J. Math. Soc. Japan,1963