1. Reduction of uranium by natural organic substances;Andreyev;Geokhimya,1964
2. Evolution dans les conditions d'affleurement de shales uranifères à matière organique (Bassin permien de l'Aumance);Bach,1980
3. Geochronology of the Carswell area, Northern Saskatchewan;Bell,1985
4. The relation of the Ambrosia Lake uranium deposits to a pre-existing oil pool;Birdseye,1977
5. Two examples of uranium associated with organic matter;Bonnamy;Org. Geochem.,1982