@article{DAN_1964_156_6_a1,
     author = {A. G. Vitushkin},
     title = {A proof of the existence of analytic functions of several variables not representable by linear superpositions 
},
     journal = {Doklady Akademii Nauk},
     pages = {1258--1261},
     publisher = {mathdoc},
     volume = {156},
     number = {6},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_156_6_a1/}
}