@article{10_21136_CMJ_1962_100544,
     author = {\v{S}ik, Franti\v{s}ek},
     title = {\"Uber additive und isotone {Funktionale} auf geordneten {Gruppen}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {611--621},
     year = {1962},
     volume = {12},
     number = {4},
     doi = {10.21136/CMJ.1962.100544},
     mrnumber = {0162868},
     zbl = {0119.26302},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1962.100544/}
}