@article{10_21136_CMJ_1994_128466,
     author = {Dr\'abek, Pavel and Opic, Bohum{\'\i}r and R\'akosn{\'\i}k, Ji\v{r}{\'\i}},
     title = {Some notes to an improbable anniversary},
     journal = {Czechoslovak Mathematical Journal},
     pages = {375--382},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {1994},
     doi = {10.21136/CMJ.1994.128466},
     mrnumber = {1281032},
     zbl = {0812.01036},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1994.128466/}
}