@article{IM2_1998_62_3_a0,
     author = {B. V. Karpov and D. Yu. Nogin},
     title = {Three-block exceptional collections over {Del} {Pezzo} surfaces},
     journal = {Izvestiya. Mathematics},
     pages = {429--463},
     year = {1998},
     volume = {62},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1998_62_3_a0/}
}