@article{01309698,
title = {On Calder\'on's conjecture.},
journal = {Annals of Mathematics. Second Series},
volume = {150},
year = {1999},
pages = {475-496},
doi = {10.2307/120971},
zbl = {0934.42012},
language = {en},
url = {http://dml.mathdoc.fr/item/01309698}
}
Lacey, Michael; Thiele, Christoph. On Calderón's conjecture.. Annals of Mathematics. Second Series, Tome 150 (1999) pp. 475-496. doi : 10.2307/120971. http://gdmltest.u-ga.fr/item/01309698/