Citation: Schofield, P. F.; Wilson, C. C.; Knight, K. S.; Kirk, C. A. (2009). Proton location and hydrogen bonding in the hydrous lead copper sulfates linarite, PbCu(SO4)(OH)2, and caledonite, Pb5Cu2(SO4)3CO3(OH)6. The Canadian Mineralogist, 47, pp. 649-662.