Citation: Mesa, J.L.; Pizarro, J.L.; Lezama, L.; Goni, A.; Arriortua, M.I.; Rojo, T. (1999). Hydrothermal synthesis and structural, spectroscopic, and magnetic studies of the N H4 Mn (As O4) . (H2 O) arsenate type dittmarite. Materials Research Bulletin, 34, pp. 1545-1555.