@article{ZNSL_1991_188_a3,
     author = {I. N. Kostin},
     title = {On a certain method for approximation of attractors},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {87--104},
     year = {1991},
     volume = {188},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1991_188_a3/}
}