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@article{IVM_1972_8_a13, author = {I. I. \`Eterman}, title = {Rational $E_{n,m}(x)$ functions, and the approximation of~$|x|$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {114--119}, publisher = {mathdoc}, number = {8}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1972_8_a13/} }
I. I. Èterman. Rational $E_{n,m}(x)$ functions, and the approximation of~$|x|$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1972), pp. 114-119. http://geodesic.mathdoc.fr/item/IVM_1972_8_a13/