Geodesic
Interpolation chain fraction and two extremal problems on rational approximations to $|x|$
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (2007), pp. 35-45.

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     title = {Interpolation chain fraction and two extremal problems on rational approximations to $|x|$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
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G. S. Ragimkhanova; A.-R. K. Ramazanov. Interpolation chain fraction and two extremal problems on rational approximations to $|x|$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (2007), pp. 35-45. http://geodesic.mathdoc.fr/item/IVM_2007_2_a4/

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