@article{DOCMA_2011__16__a22,
     author = {Bruzzo, Ugo and Markushevish, Dimitri},
     title = {Moduli of framed sheaves on projective surfaces},
     journal = {Documenta mathematica},
     pages = {399--410},
     publisher = {mathdoc},
     volume = {16},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2011__16__a22/}
}