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@article{DAN_1991_317_4_a18, author = {G. E. Naumov}, title = {$NP$-completeness of problems for constructing optimal decision trees}, journal = {Doklady Akademii Nauk}, pages = {850--853}, publisher = {mathdoc}, volume = {317}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_317_4_a18/} }
G. E. Naumov. $NP$-completeness of problems for constructing optimal decision trees. Doklady Akademii Nauk, Tome 317 (1991) no. 4, pp. 850-853. http://geodesic.mathdoc.fr/item/DAN_1991_317_4_a18/