@article{10_4064_sm_44_6_563_582,
     author = {A. Calder\'on},
     title = {Estimates for singular integral operators in terms of maximal functions},
     journal = {Studia Mathematica},
     pages = {563--582},
     publisher = {mathdoc},
     volume = {44},
     number = {6},
     year = {1972},
     doi = {10.4064/sm-44-6-563-582},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-44-6-563-582/}
}