@article{CLTM_1975_1975_1_a15,
     author = {Rubio, Baldomero},
     title = {The hardy-littlewood maximal function and derivation of integrals.},
     journal = {Collectanea mathematica},
     pages = {219-226},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {1975},
     zbl = {0331.26009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1975_1975_1_a15/}
}