@article{AUCMP_2010__51_1_a2,
     author = {Kala, V{\'\i}t\v{e}zslav and Kepka, Tom\'a\v{s} and N\v{e}mec, Petr},
     title = {Norms on semirings. {I.}},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {29--48},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {2010},
     mrnumber = {2752698},
     zbl = {1243.16052},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/AUCMP_2010__51_1_a2/}
}