%0 Journal Article %A Burenkov, Viktor %A Schulze, Bert-Wolfgang %A Tarkhanov, Nikolai N. %T Extension operators for Sobolev spaces commuting with a given transform %J Glasgow mathematical journal %D 1998 %P 291-296 %V 40 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500032614/ %R 10.1017/S0017089500032614 %F 10_1017_S0017089500032614