@article{10_21136_CPM_1961_108208,
     author = {Kowalski, Old\v{r}ich},
     title = {O positivn\v{e} definitn{\'\i}ch bas{\'\i}ch nad obory integrity re\'aln\'ych \v{c}{\'\i}sel},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {132--147},
     year = {1961},
     volume = {86},
     number = {2},
     doi = {10.21136/CPM.1961.108208},
     mrnumber = {0146173},
     zbl = {0106.02903},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1961.108208/}
}