Synthesis and structure of lanthanide picrate complexes with trans-1,3-dithiane-1,3-dioxide(trans-DTS`O IND. 2´) - Miranda Jr., P.; Zukerman-Schpector, Júlio; Isolani, Paulo Celso; Vicentini, Geraldo; Zinner, Lea Barbieri (Rare Earths' 2001, 2001)