@article{PM_2002_2002_1_a29,
     author = {Mattila, Pertti},
     title = {Integrales singulares y rectificabilidad.},
     journal = {Publicacions matem\`atiques},
     pages = {199-208},
     year = {2002},
     volume = {46},
     number = {Extra},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_2002_2002_1_a29/}
}