@article{IM2_1989_33_1_a2,
     author = {A. L. Gorodentsev},
     title = {Exceptional bundles on surfaces with a~moving anticanonical class},
     journal = {Izvestiya. Mathematics },
     pages = {67--83},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1989_33_1_a2/}
}