Citation: Ponomarenko, V.I.; Porai-Koshits, M.A.; Kurkutova, E.N.; Sulaimankulov, K. (1978). The crystal structure of cerium (III) sulfate-2-urea-5-water Ce2 (S O4)3 (O C (N H2)2)2 (H2 O)5 and the structural characteristics of the sulfates of the rare earth elements. Zhurnal Strukturnoi Khimii (Issue-No. from 1981), 19, pp. 856-865.