TY - JOUR AU - R. Smarzewski TI - Characterization of optimal polynomial and rational starting approximations JO - Applicationes Mathematicae PY - 1976 SP - 511 EP - 515 VL - 15 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-15-4-511-515/ DO - 10.4064/am-15-4-511-515 LA - en ID - 10_4064_am_15_4_511_515 ER -