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@article{MAN_1995__301_4_165315, author = {Charles H. Walter}, title = {Components of the stack of torsion-free sheaves of rank 2 on ruled surfaces.}, journal = {Mathematische Annalen}, pages = {699--716}, publisher = {mathdoc}, volume = {301}, number = {4}, year = {1995}, zbl = {0820.14029}, url = {http://geodesic.mathdoc.fr/item/MAN_1995__301_4_165315/} }
Charles H. Walter. Components of the stack of torsion-free sheaves of rank 2 on ruled surfaces.. Mathematische Annalen, Tome 301 (1995) no. 4, pp. 699-716. http://geodesic.mathdoc.fr/item/MAN_1995__301_4_165315/