1. V. G. Romanov, “Integral Geometry on Geodesics of an Isotropic Riemannian Metric,” Dokl. Akad. Nauk SSSR 241(2), 290–293 (1978) [SovietMath. Dokl. 19, 847–851 (1978)].
2. V. G. Romanov, Inverse Problems of Mathematical Physics (Nauka, Moscow, 1984; VNU Science Press, Utrecht, 1987).
3. V. A. Sharafutdinov, Integral Geometry of Tensor Fields (VSP, Utrecht, 1994).
4. S. R. Deans, The Radon Transform and Some of Its Applications (JohnWiley & Sons, New York, 1983).
5. I.E. Svetov, E. Yu. Derevtsov, Yu. S. Volkov, and T. Schuster, “A Numerical Solver Based on B-Splines for 2D Vector Field Tomography in a Refracting Medium,” Math. Comput. Simulation 97, 207–223 (2014).