@article{10_21136_CPM_1958_108283,
     author = {Petr\r{u}v, Vladim{\'\i}r},
     title = {O symetrick\'e derivaci spojit\'ych funkc{\'\i}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {336--342},
     publisher = {mathdoc},
     volume = {083},
     number = {3},
     year = {1958},
     doi = {10.21136/CPM.1958.108283},
     mrnumber = {0100653},
     zbl = {0082.05101},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1958.108283/}
}