Citation: Berdonosov, P.S.; Schmidt, P.; Dolgikh, V.A.; Dityat'yev, O.A.; Lightfoot, P.; Ruck, M. (2004). Nd2 (Se O3)2 (Se O4) . H2 O - a mixed-valence compound aontaining selenium in the oxidation states +IV and +VI. Zeitschrift fuer Anorganische und Allgemeine Chemie, 630, pp. 1395-1400.