@article{ZNSL_1990_184_a0,
     author = {I. A. Ibragimov and M. S. Nikulin and V. N. Sudakov},
     title = {Preface},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {3},
     publisher = {mathdoc},
     volume = {184},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1990_184_a0/}
}