@article{GDZPPN002097435,
title = {Non-free Projective Modules Over IH[X, Y] and Stable Bundles Over IP2(...).},
journal = {Inventiones mathematicae},
volume = {64},
year = {1981},
pages = {13-28},
zbl = {0474.14012},
url = {http://dml.mathdoc.fr/item/GDZPPN002097435}
}
Sridharan, R.; Parimala, R.; Knus, M.A. Non-free Projective Modules Over IH[X, Y] and Stable Bundles Over IP2(...).. Inventiones mathematicae, Tome 64 (1981) pp. 13-28. http://gdmltest.u-ga.fr/item/GDZPPN002097435/