Bart Janssen Remco Duits Bart M. ter Haar Romeny Linear Image Reconstruction by Sobolev Norms on the Bounded Domain. 55-67 2007 conf/scalespace/2007 SSVM http://dx.doi.org/10.1007/978-3-540-72823-8_6 db/conf/scalespace/ssvm2007.html#JanssenDR07