TY - JOUR AU - DalĂ­k, Josef TI - Stability of quadratic interpolation polynomials in vertices of triangles without obtuse angles JO - Archivum mathematicum PY - 1999 SP - 285 EP - 297 VL - 35 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1999__35_4_a0/ LA - en ID - ARM_1999__35_4_a0 ER -