@article{10_21136_CMJ_1989_102344,
     author = {Rach\r{u}nek, Ji\v{r}{\'\i}},
     title = {Polars in autometrized algebras},
     journal = {Czechoslovak Mathematical Journal},
     pages = {681--685},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {1989},
     doi = {10.21136/CMJ.1989.102344},
     mrnumber = {1018003},
     zbl = {0705.06010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1989.102344/}
}