Citation: Barnes, P.W.; Woodward, P.M.; Lee Yong-Jae; Vogt, T.; Hriljac, J.A. (2003). Pressure-induced cation migration and volume expansion in the defect pyrochlores A Nb W O6 (A = (N H4)(+), Rb(+), H(+), K(+)). Journal of the American Chemical Society, 125, pp. 4572-4579.