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@article{DAN_1987_294_2_a2, author = {R. G. Nigmatullin}, title = {Two classes of proofs of lower bounds on complexity}, journal = {Doklady Akademii Nauk}, pages = {272--275}, publisher = {mathdoc}, volume = {294}, number = {2}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_294_2_a2/} }
R. G. Nigmatullin. Two classes of proofs of lower bounds on complexity. Doklady Akademii Nauk, Tome 294 (1987) no. 2, pp. 272-275. http://geodesic.mathdoc.fr/item/DAN_1987_294_2_a2/