@article{ISU_2011_11_1_a3,
     author = {E. V. Korobchenko and S. I. Nebaluev},
     title = {Leray--Serra spectral sequence for tolerant quasifibering of tolerant ways},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {24--30},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2011_11_1_a3/}
}