@article{GDZPPN002484862, title = {Norm Inequalities for Spherical Means.}, journal = {Monatshefte f\"ur Mathematik}, volume = {99}, year = {1985}, pages = {153-162}, zbl = {0569.42010}, url = {http://dml.mathdoc.fr/item/GDZPPN002484862} }
Sjölin, Per. Norm Inequalities for Spherical Means.. Monatshefte für Mathematik, Tome 99 (1985) pp. 153-162. http://gdmltest.u-ga.fr/item/GDZPPN002484862/