@article{AUCMP_1999__40_1_a2,
     author = {Mielczarek, Gryegorz},
     title = {Extreme norms on $\mathbb{R}^2$},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {5--20},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {1999},
     mrnumber = {1728275},
     zbl = {0942.46004},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/AUCMP_1999__40_1_a2/}
}