@article{10_21136_AM_1990_104420,
     author = {Hlav\'a\v{c}ek, Ivan},
     title = {Penalty method and extrapolation for axisymmetric elliptic problems with {Dirichlet} boundary conditions},
     journal = {Applications of Mathematics},
     pages = {405--417},
     publisher = {mathdoc},
     volume = {35},
     number = {5},
     year = {1990},
     doi = {10.21136/AM.1990.104420},
     mrnumber = {1072609},
     zbl = {0725.65098},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1990.104420/}
}