1. Secondary processes in carbonatites: Petrology of “rodberg” (hematite-calcite-dolomite carbonatite) in the Fen complex, Telemark (South Norway);Andersen;Lithos,1984
2. Magmatic fluids in the Fen carbonatite complex, S.E. Norway: Evidence from solid and fluid inclusions in apatite;Andersen;Contrib. Mineral. Petrol.,1986
3. Mantle and crustal components in a carbonatite complex, and the evolution of carbonatite magma: REE and isotopic evidence from the Fen complex, S.E. Norway;Andersen;Chem. Geol. Isotope Geosci. section,1987
4. Pyroclastic mechanisms for carbonatite intrusion: Evidence from intrusives in the Fen central complex, SE Norway;Andersen;J. Geol.,1986
5. Strontium and neodymium isotopic composition of an early tinguaite (nepheline microsyenite) in the Fen complex, Telemark, Southeast Norway: Age and petrogenetic implications;Andersen;Nor. geol. unders. Bull.,1987