@article{RM_2011_66_2_a8,
     author = {R. G. Novikov},
     title = {Weighted {Radon} transforms for which {Chang's} approximate inversion formula is exact},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {442--443},
     publisher = {mathdoc},
     volume = {66},
     number = {2},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2011_66_2_a8/}
}