@article{PM_2002_2002_1_a32, author = {Verdera, Joan}, title = {La p\'erdida de la condici\'on duplicante en la teor{\'\i}a de {Calder\'on-Zygmund.}}, journal = {Publicacions matem\`atiques}, pages = {275-292}, publisher = {mathdoc}, volume = {46}, number = {Extra}, year = {2002}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PM_2002_2002_1_a32/} }