addenda and errata
Errors in the paper by Liu, Waclawik & Luo [J. Appl. Cryst. (2010), 43, 448-454
] are corrected.
research papers
The origin of the multiple orientation relationship found in the Mg/γ-Mg17Al12 precipitation system has been rationally interpreted by a simplified invariant line analysis with consideration of the pseudo-twinning relationship between close-packed planes (), (11), (033), (411) and () in the precipitate phase γ-Mg12Al17.