@article{CLTM_2001_2001_1_a11,
     author = {Rzeszotnik, Ziemowit},
     title = {Condiciones y ond{\'\i}culas de {Calder\'on.}},
     journal = {Collectanea mathematica},
     pages = {181-191},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_2001_2001_1_a11/}
}