Citation: Corbel, G.; Suard, E.; Emery, J.; Leblanc, M. (2001). (O H)-F disorder in non-centrosymmetric Zn2 (B O3) (O H)0.75 F0.25: ab initio structure determination and NMR study: comparison with tridymite and fluoride borates. Journal of Alloys Compd., 315, pp. 287-295.