TY - JOUR AU - Karl-Joachim Wirths TI - An extremal problem for polynomials with a prescribed value at a given point of the real axis. JO - Mathematica Scandinavica PY - 1990 SP - 130 EP - 140 VL - 66 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1990__66_1_167098/ ID - MS2_1990__66_1_167098 ER -