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| Kresten, Peter, Morogan, Viorica (1986) Fenitization at the Fen complex, southern Norway. Lithos, 19 (1) 27-42 doi:10.1016/0024-4937(86)90013-7 |
| Sæther, Egil (1957) The alkaline rock province of the Fen area in southern Norway. Det Konglige Norske Videnskabsselskaps Skrifter Vol. 1957 (1) |
| Sæther, Egil (1957) The alkaline rock province of the Fen area in southern Norway. Det Konglige Norske Videnskabsselskaps Skrifter Vol. 1957 (1) |
| Andersen, Tom (1986) Compositional variation of some rare earth minerals from the Fen complex (Telemark, SE Norway): implications for the mobility of rare earths in a carbonatite system. Mineralogical Magazine, 50 (357) 503-509 doi:10.1180/minmag.1986.050.357.13 |