References
- Boman , J. 1981 . On the Closure of Spaces of Sums of Plane Waves and the Range of the X-ray Transform, 1. Reports no. 8 , Dep. of Math., University of Stockholm .
- Petersen , B.E. , Smith , K.T. and Solmon , D.C. 1979 . Sums of Plane Waves and the Range of the Radon Transform . Math. Ann , 243
- Shepp , L.A. and Kruskal , J.B. 1978 . Computerized Tomography: the New Medical X-ray Technology . Amer. Math. Monthly , 85
- Smith , K.T. 1970 . Formulas to Represent Functions by their Derivatives . Math. Ann , 188
- Smith , K.T. , Solmon , D.C. and Wagner , S.L. 1977 . Practical and Mathematical Aspects of the Problem of Reconstructing Objects from Radiographs . Bull. A.M.S , 83
- Svensson , L. 1980 . When is the Sum of Closed Subspaces Closed? An Example arising in Computerized Tomography , Research Report, Royal Institute of Technology, Stockholm .