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@article{MZ_1992__209_2_174382, author = {Zhenbo Qin}, title = {Simple sheaves versus stable sheaves on algebraic surfaces.}, journal = {Mathematische Zeitschrift}, pages = {559--580}, publisher = {mathdoc}, volume = {209}, number = {2}, year = {1992}, zbl = {0735.14014}, url = {http://geodesic.mathdoc.fr/item/MZ_1992__209_2_174382/} }
Zhenbo Qin. Simple sheaves versus stable sheaves on algebraic surfaces.. Mathematische Zeitschrift, Tome 209 (1992) no. 2, pp. 559-580. http://geodesic.mathdoc.fr/item/MZ_1992__209_2_174382/