@article{IVM_1978_12_a0,
     author = {A. P. Norden and Ya. I. Zabotin and L. D. \`Eskin and S. V. Grigor'ev and E. A. Begovatov},
     title = {Al'bert {Valentinovich} {Sul'din} (on the occasion of his fiftieth birthday)},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--5},
     publisher = {mathdoc},
     number = {12},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1978_12_a0/}
}