@misc{PMFA_1989__34_6_a6,
     title = {Obsah},
     journal = {Pokroky matematiky, fyziky a astronomie},
     publisher = {mathdoc},
     volume = {34},
     number = {6},
     year = {1989},
     language = {cz},
     url = {https://geodesic-test.mathdoc.fr/item/PMFA_1989__34_6_a6/}
}