@article{ZNSL_1976_61_a10,
     author = {N. A. Sapogov},
     title = {Stability for the {Marcinkiewicz} theorem. {Case} of a fourth-degree polynomial},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {107--124},
     publisher = {mathdoc},
     volume = {61},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_61_a10/}
}