@article{IVM_2001_10_a7,
     author = {I. N. Maiboroda and L. A. Ostrovetskii},
     title = {On fixed points of operators with a~heterogeneous derivative},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {53--57},
     publisher = {mathdoc},
     number = {10},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2001_10_a7/}
}