%0 Journal Article %A M. Wojciechowski %T Characterizing translation invariant projections on Sobolev spaces on tori by the coset ring and Paley projections %J Studia Mathematica %D 1993 %P 181-193 %V 104 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-104-2-181-193/ %R 10.4064/sm-104-2-181-193 %G en %F 10_4064_sm_104_2_181_193