TY - JOUR AU - J. L. Walsh TI - On Approximation to an Analytic Function by Rational Functions of Best Approximation. JO - Mathematische Zeitschrift PY - 1934 SP - 163 EP - 176 VL - 38 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1934__38_168494/ ID - MZ_1934__38_168494 ER -