@article{VMUMM_2011_1_a17,
     author = {A. V. Vlakhova and I. A. Smirnov},
     title = {Letter to the editors},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {76},
     publisher = {mathdoc},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2011_1_a17/}
}