@article{RM_2004_59_4_a8,
     author = {I. A. Cheltsov},
     title = {The method of degeneracy and the irrationality of},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {792--793},
     year = {2004},
     volume = {59},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2004_59_4_a8/}
}