Ferroelectrics and related substances. Subvolume B2, Inorganic substances other than oxides : (NH₄)₂SO₄ family -- K₃BiCl₆ · 2KCl · KH₃F₄ / [edited by] Y. Shiozaki, E. Nakamura, T. Mitsui
Landolt-Bornstein : numerical data and functional relationships in science and technology - New Series. Group III, Volume 36, Ferroelectrics and related substances, 1616-9549 ; Subvolume B