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3. Padé-type Approximation and General Orthogonal Polynomials;Brezinski,1980
4. Padé approximants: Old and new;Brezinski;Jahrbuch Überblicke Mathematik,1982
5. Domaine de convergence d'une transformation de la suite des sommes partielles d'une fonction holomorphe et applications aux approximants de type Pad é;Daras,1988