@article{10_4064_fm_44_2_238_239,
     author = {O. H\`ajek},
     title = {Note sur la mesurabilit\'e {B} de la d\'eriv\'ee sup\'erieure},
     journal = {Fundamenta Mathematicae},
     pages = {238--239},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {1957},
     doi = {10.4064/fm-44-2-238-239},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-44-2-238-239/}
}