TY - JOUR AU - Charles B. Dunham TI - Approximation with Respect to Sums of Chebyshev Norms. (Short Communications). JO - Aequationes mathematicae PY - 1972 SP - 193 EP - 194 VL - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM2_1972__8_136281/ ID - AM2_1972__8_136281 ER -