%0 Journal Article
%A Bournaveas, N.
%A  Gutiérrez, S.
%T On the regularity of averages over spheres for kinetic transport equations in hyperbolic Sobolev spaces.
%J Revista matemática iberoamericana
%D 2007
%P 481-512
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RMI_2007_2007_1_a19/
%G en
%F RMI_2007_2007_1_a19