TY - JOUR AU - Hlaváček, Ivan TI - Penalty method and extrapolation for axisymmetric elliptic problems with Dirichlet boundary conditions JO - Applications of Mathematics PY - 1990 SP - 405 EP - 417 VL - 35 IS - 5 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1990.104420/ DO - 10.21136/AM.1990.104420 LA - en ID - 10_21136_AM_1990_104420 ER -