Synthesis, crystal structure and spectroscopic properties of the NH4NiPO4·nH2O (n = 1,6) compounds; magnetic behaviour of the monohydrated phase

1. Goñi, A.
2. Pizarro, J.L.
3. Lezama, L.M.
4. Barberis, G.E.
5. Arriortua, M.I.
6. Rojo, T.