@article{ZNSL_1985_141_a13,
     author = {P. P. Kargaev},
     title = {Letter to the {Editor}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {192},
     publisher = {mathdoc},
     volume = {141},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1985_141_a13/}
}