@article{ARM_1982__18_1_a6,
     author = {\v{S}antav\'a, Sylva},
     title = {\"Uber {Isochrone} durch zwei lineare {Differentialgleichungen} zweiter {Ordnung} geregelte {Schwingungen} von {Materiellen} {Punkten}},
     journal = {Archivum mathematicum},
     pages = {49--56},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1982},
     mrnumber = {683345},
     zbl = {0503.34023},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/item/ARM_1982__18_1_a6/}
}