TY - JOUR AU - Jan-Erik. Andersson AU - Tord Ganelius TI - The Degree of Approximation by Rational Functions with Fixed Poles. JO - Mathematische Zeitschrift PY - 1977 SP - 161 EP - 166 VL - 153 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1977__153_172489/ ID - MZ_1977__153_172489 ER -