Citation: Koehler, J.; Roisnel, T.; van Wuellen, L.; Simon, A.; Cordier, S.; Somer, M.; Poulain, M. (2002). Structures and properties of Nb O F3 and Ta O F3 - with a remark to the O/F ordering in the Sn F4 type structure. Zeitschrift fuer Anorganische und Allgemeine Chemie, 628, pp. 2683-2690.