Citation: Gu\'nka, Piotr A.; Dranka, Maciej; Hanfland, Michael; Dziubek, Kamil F.; Katrusiak, Andrzej; Zachara, Janusz (2015). Cascade of High-Pressure Transitions of Claudetite II and the First Polar Phase of Arsenic(III) Oxide. Crystal Growth & Design, 15, pp. 3950-.