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@article{IVM_2003_6_a2, author = {E. S. Astapova and N. S. Astapov}, title = {Some examples of quadratic summation of power series}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {23--27}, publisher = {mathdoc}, number = {6}, year = {2003}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2003_6_a2/} }
E. S. Astapova; N. S. Astapov. Some examples of quadratic summation of power series. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (2003), pp. 23-27. http://geodesic.mathdoc.fr/item/IVM_2003_6_a2/