%0 Journal Article %A Hidano, K. %T Small solutions to semi-linear wave equations with radial data of critical regularity. %J Revista matemática iberoamericana %D 2009 %P 693-708 %V 25 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RMI_2009_2009_1_a11/ %G en %F RMI_2009_2009_1_a11