@article{10_14708_wm_v2i2_2755,
     author = {K. Tatarkiewicz},
     title = {Uwagi o si{\l}ach zale\.znych od wy\.zszych pochodnych drogi wzgl\k{e}dem czasu},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 298--306},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1959},
     doi = {10.14708/wm.v2i2.2755},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v2i2.2755/}
}