@article{IM2_1989_32_1_a5,
     author = {A. N. Rudakov},
     title = {The {Markov} numbers and exceptional bundles on~$\mathbf P^2$},
     journal = {Izvestiya. Mathematics },
     pages = {99--112},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1989_32_1_a5/}
}