Geodesic
Regularization of Ritz method on an example of polynomial approximation
Matematičeskie zametki, Tome 7 (1970) no. 4, pp. 483-493.

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Relation is established between the rate of approximating of a function by polynomials and the rate of growth of the coefficients of these polynomials depending on analytic or differential properties of these functions. It is found that our result is connected with regularization of the Ritz method and with the construction of standard programs for function computation. 
@article{MZM_1970_7_4_a13,
     author = {N. S. Bakhvalov and M. Shtrekho},
     title = {Regularization of {Ritz} method on an example of polynomial approximation},
     journal = {Matemati\v{c}eskie zametki},
     pages = {483--493},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1970_7_4_a13/}
}
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N. S. Bakhvalov; M. Shtrekho. Regularization of Ritz method on an example of polynomial approximation. Matematičeskie zametki, Tome 7 (1970) no. 4, pp. 483-493. http://geodesic.mathdoc.fr/item/MZM_1970_7_4_a13/