@article{10_21136_CPMF_1950_123880,
     author = {Arnulf, Albert},
     title = {Oko a optick\'e p\v{r}{\'\i}stroje. {[II.]}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {312--D319},
     year = {1950},
     volume = {75},
     number = {3},
     doi = {10.21136/CPMF.1950.123880},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1950.123880/}
}