@article{10_4064_fm_77_3_227_234,
     author = {P. Holick\'y},
     title = {A supplement to the paper {"Differentiable} roads for real functions" by {J.} {G.} {Ceder}},
     journal = {Fundamenta Mathematicae},
     pages = {227--234},
     publisher = {mathdoc},
     volume = {77},
     number = {3},
     year = {1972},
     doi = {10.4064/fm-77-3-227-234},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-77-3-227-234/}
}