@article{10_4064_sm_57_1_91_95,
     author = {Antonio Cordoba},
     title = {On the {Vitali} covering properties of a differentiation basis},
     journal = {Studia Mathematica},
     pages = {91--95},
     year = {1976},
     volume = {57},
     number = {1},
     doi = {10.4064/sm-57-1-91-95},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-57-1-91-95/}
}