@article{CMUC_2003__44_4_a5,
     author = {P\v{r}{\'\i}hoda, Pavel},
     title = {Bases of minimal elements of some partially ordered free abelian groups},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {623--628},
     publisher = {mathdoc},
     volume = {44},
     number = {4},
     year = {2003},
     mrnumber = {2062878},
     zbl = {1101.16010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2003__44_4_a5/}
}