Citation: Lindsay-Scott, Alex; Dobson, David; Nestola, Fabrizio; Alvaro, Matteo; Casati, Nicola; Liebske, Christian; Knight, Kevin S.; Smith, Ronald I.; Wood, Ian G. (2014). Time-of-flight neutron powder diffraction with milligram samples: the crystal structures of NaCoF~3~ and NaNiF~3~ post-perovskites. Journal of Applied Crystallography, 47, pp. 1939-1947.