@article{10_4064_sm_87_2_193_196,
     author = {Richard Arens},
     title = {On a theorem of {Gleason,} {Kahane} and {\.Zelazko}},
     journal = {Studia Mathematica},
     pages = {193--196},
     publisher = {mathdoc},
     volume = {87},
     number = {2},
     year = {1987},
     doi = {10.4064/sm-87-2-193-196},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-87-2-193-196/}
}