@article{ZNSL_1984_139_a8,
     author = {Yu. K. Dem'yanovich},
     title = {Local approximations on manifolds and weighted estimates},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {125--138},
     publisher = {mathdoc},
     volume = {139},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1984_139_a8/}
}