@article{10_21136_CPMF_1940_120987,
     author = {Zahradn{\'\i}\v{c}ek, Josef},
     title = {Z fysik\'aln{\'\i} prakse},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {D131},
     publisher = {mathdoc},
     volume = {69},
     number = {Suppl.},
     year = {1940},
     doi = {10.21136/CPMF.1940.120987},
     language = {cz},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/CPMF.1940.120987/}
}