Non-free Projective Modules Over IH[X, Y] and Stable Bundles Over IP2(...).
Page 1
R. Sridharan, R. Parimala, M.A. Knus (1981/1982)
Inventiones mathematicae
Michela Brundu (1987)
Manuscripta mathematica
Katz, Daniel (1990)
Mathematica Pannonica
Page 1