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@article{DAN_1988_298_6_a13, author = {A. B. Ugol'nikov}, title = {On the depth and complexity of formulas that realize functions in}, journal = {Doklady Akademii Nauk}, pages = {1341--1344}, publisher = {mathdoc}, volume = {298}, number = {6}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1988_298_6_a13/} }
A. B. Ugol'nikov. On the depth and complexity of formulas that realize functions in. Doklady Akademii Nauk, Tome 298 (1988) no. 6, pp. 1341-1344. http://geodesic.mathdoc.fr/item/DAN_1988_298_6_a13/