@article{IM2_2003_67_3_a3,
     author = {S. A. Kudryavtsev},
     title = {Classification of exceptional log del {Pezzo} surfaces with $\delta=1$},
     journal = {Izvestiya. Mathematics},
     pages = {461--497},
     year = {2003},
     volume = {67},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2003_67_3_a3/}
}