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@article{DAN_1968_179_6_a9, author = {G. V. Chudnovskii}, title = {Some results in the theory of infinitely long expressions}, journal = {Doklady Akademii Nauk}, pages = {1286--1288}, publisher = {mathdoc}, volume = {179}, number = {6}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_179_6_a9/} }
G. V. Chudnovskii. Some results in the theory of infinitely long expressions. Doklady Akademii Nauk, Tome 179 (1968) no. 6, pp. 1286-1288. http://geodesic.mathdoc.fr/item/DAN_1968_179_6_a9/