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@article{IVM_1980_9_a13, author = {P. N. Denisenko}, title = {A~simple process of numerical differentiation}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {71--73}, publisher = {mathdoc}, number = {9}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1980_9_a13/} }
P. N. Denisenko. A~simple process of numerical differentiation. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (1980), pp. 71-73. http://geodesic.mathdoc.fr/item/IVM_1980_9_a13/