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@article{DAN_1970_194_2_a8, author = {P. S. Soltan}, title = {Illumination from within for unbounded convex bodies}, journal = {Doklady Akademii Nauk}, pages = {273--274}, publisher = {mathdoc}, volume = {194}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_194_2_a8/} }
P. S. Soltan. Illumination from within for unbounded convex bodies. Doklady Akademii Nauk, Tome 194 (1970) no. 2, pp. 273-274. http://geodesic.mathdoc.fr/item/DAN_1970_194_2_a8/