@article{10_4153_CJM_1988_067_7, author = {Wawrzy\~nczyk, Antoni}, title = {Spectral {Analysis} on {Upper} {Light} {Cone} in {R3} and the {Radon} {Transform}}, journal = {Canadian journal of mathematics}, pages = {1458--1481}, year = {1988}, volume = {40}, number = {6}, doi = {10.4153/CJM-1988-067-7}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1988-067-7/} }