@article{ZNSL_1976_55_a1,
     author = {N. A. Sapogov},
     title = {The stability of solutions of the functional equations connected with characterization theorems for probability distributions},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {15--25},
     publisher = {mathdoc},
     volume = {55},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_55_a1/}
}