TY - JOUR AU - V. P. Golubyatnikov TI - On convexity of a planar domain with a pair of concave tomography projections JO - Matematičeskie trudy PY - 2008 SP - 107 EP - 114 VL - 11 IS - 2 UR - http://geodesic.mathdoc.fr/item/MT_2008_11_2_a2/ LA - ru ID - MT_2008_11_2_a2 ER -