%0 Journal Article %A Stefanov, Plamen %T Microlocal Approach to Tensor Tomography and Boundary and Lens Rigidity %J Serdica Mathematical Journal %D 2008 %P 67-112 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2008_34_1_a3/ %G en %F SMJ2_2008_34_1_a3