Citation: Pili, Simona; Argent, Stephen P.; Morris, Christopher G.; Rought, Peter; Garc\'ia-Sakai, Victoria; Silverwood, Ian P.; Easun, Timothy L.; Li, Ming; Warren, Mark R.; Murray, Claire A.; Tang, Chiu C.; Yang, Sihai; Schr\"oder, Martin (2016). Proton Conduction in a Phosphonate-Based Metal-Organic Framework Mediated by Intrinsic "Free Diffusion inside a Sphere".. Journal of the American Chemical Society, 138, pp. 6352-6355.