@article{ARM_1976__12_1_a7,
     author = {R\r{u}\v{z}i\v{c}ka, Ji\v{r}{\'\i}},
     title = {Polars on partially ordered groups},
     journal = {Archivum mathematicum},
     pages = {53--62},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1976},
     mrnumber = {0437419},
     zbl = {0356.06023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1976__12_1_a7/}
}