@article{MAN_1982__260_163667,
     author = {Christian Okonek},
     title = {Reflexive {Garben} auf {IP4.}},
     journal = {Mathematische Annalen},
     pages = {211--238},
     publisher = {mathdoc},
     volume = {260},
     year = {1982},
     url = {http://geodesic.mathdoc.fr/item/MAN_1982__260_163667/}
}