Synthesis and crystal structure of sodium hydrogen selenates, NaHSeO4 and Na3[H(HSeO4)2](HSeO4)2 Zakharov, M. A. ; Troyanov, S. I. ; Rybakov, V. B. ; Aslanov, L. A. ; Kemnitz, E. Abstract Publication: Crystallography Reports Pub Date: May 1999 Bibcode: 1999CryRp..44..408Z