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Grew, E.S.W.; Armbruster, T.; Lazic, B.; Yates, M.G.; Medenbach, O.; Huisjsmans, J.P. (2011). Werdingite from a pegmatite at Almgjotheii, Rogaland, Norway: The role of iron in a borosilicate with a mullite-type structur. European journal of mineralogy, 23(4), pp. 577-589. Stuttgart: E. Schweizerbart'sche Verlagsbuchhandlung (Nägele u. Obermiller) 10.1127/0935-1221/2011/0023-2121
Döbelin, Nicola; Reznitsky, N.; Sklyarov, E.V.; Armbruster, Thomas Michael; Medenbach, O. (2006). Schreyerite, V2Ti3O9: New occurrence and crystal structure. American mineralogist, 91, pp. 196-202. Mineralogical Society of America
Armbruster, T.; Gnos, E.; Dixon, R.; Gutzmer, J.; Hejny, C.; Döbelin, N.; Medenbach, O. (2002). Manganvesuvianite and tweddillite, two new Mn3+-silicate minerals from the Kalahari manganese fields, South Africa. Mineralogical magazine, 66(1), pp. 137-150. Mineralogical Society 10.1180/0026461026610018
