Citation: Trombe, J.-C.; Petit, J.-F.; Gleizes, A. (1991). Lanthanide oxalato-squarates : preparation and crystal structures of [Ce2(H2O)8(C4O4)2(C2O4)].3H2O and Eu2(H2O)4(C4O4)2(C2O4). European Journal of Solid State and Inorganic Chemistry, 28, pp. 669-681.