TY - JOUR AU - Krupka, Demeter TI - On a class of variational problems defined by polynomial Lagrangians JO - Archivum mathematicum PY - 1976 SP - 99 EP - 105 VL - 12 IS - 2 UR - http://geodesic.mathdoc.fr/item/ARM_1976_12_2_a5/ LA - en ID - ARM_1976_12_2_a5 ER -