@article{1256048109, author = {Calder\'on, Calixto P.}, title = {Lacunary spherical means}, journal = {Illinois J. Math.}, volume = {23}, number = {4}, year = {1979}, pages = { 476-484}, language = {en}, url = {http://dml.mathdoc.fr/item/1256048109} }
Calderón, Calixto P. Lacunary spherical means. Illinois J. Math., Tome 23 (1979) no. 4, pp. 476-484. http://gdmltest.u-ga.fr/item/1256048109/