1. Johansson, K., “Mineralogical Communications” (in German), Z. Kristallogr., 68, 87–118 (1928) (Crys. Structure, Experimental) as quoted by [1962Mou]
2. Adelskoeld, V., “X-Ray Studies on Magnetoplumbite, Pb0.6Fe2O3 and other Substances Resembling “β-Alumina”, Na2O·11Al2O3”, Arkiv Kemi, Mineral. Geol., 12A(29), 1–9 (1938) (Crys. Structure, Experimental, 12)
3. Cocco, A., “The Binary System PbO-Fe2O3” (in Italian), Ann. Chim. (Rome), 45, 737–753 (1955) (Crys. Structure, Phase Relations, Experimental, 4) as quoted by [1960Mar] and [1989Rag]
4. Berger, W., Pawlek, F., “Crystallographic and Magnetic Studies of the PbO-Fe2O3 System” (in German), Arch. Eisenhuettenwes., 28(2), 101–108 (1957) (Crys. Structure, Phase Diagram, Experimental, Magn. Prop., 10)
5. Margulis, E.V., Kopylov, N.I., “The Lead Monoxide-Ferric Oxide System”, Russ. J. Inorg. Chem. (Engl. Transl.), 5(11), 1196–1199 (1960), translated from Zh. Neorg. Khim., 5(11), 2474–2479 (Crys. Structure, Morphology, Phase Diagram, Experimental, *, 11)