1. Radiogenic isotope systematics of the Herefoss granite, South Norway: an indicator of Sveconorwegian (Grenvillian) crustal evolution in the Baltic Shield
2. The source of lead in the Osen sandstone lead deposit on the Baltic Shield, Norway
3. Blum, J.R. 1843.Die Pseudomorphosen des Mineralreichs208–209. Mit vier Nachträge. E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart. [The main part of this treatise was issued in 1843, and the four supplements were issued in 1847, 1852, 1863 and 1879. The relevant information about galena and sphalerite is found in the main part, in suppl. 2, pp. 128–130, and in suppl. 4, p. 178, 1879