@article{10_4064_sm_53_2_139_174,
     author = {Calixto Calder\'on},
     title = {On commutators of singular integrals},
     journal = {Studia Mathematica},
     pages = {139--174},
     publisher = {mathdoc},
     volume = {53},
     number = {2},
     year = {1975},
     doi = {10.4064/sm-53-2-139-174},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-53-2-139-174/}
}