%0 Journal Article %A B. Bongioanni %A J. L. Torrea %T What is a Sobolev space for the Laguerre function systems? %J Studia Mathematica %D 2009 %P 147-172 %V 192 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4064/sm192-2-4/ %R 10.4064/sm192-2-4 %G en %F 10_4064_sm192_2_4