1. Adriasola Munoz Y., Littke R., Brix M.R. (2007) Fluid systems and basin evolution of the western Lower Saxony Basin, Germany,Geofluids7, 335-355.
2. Andruleit H., Rempel H., Meßner J., Babies H.G., Schlömer S., Schmidt S., Cramer B. (2010) Nicht-konventionelles Erdgas: Weltweite Ressourcen und Entwicklungen eines “Hoffnungsträgers” unter den fossilen Energierohstoffen,Erdöl Erdgas Kohle126, 7/8, 277-282.
3. Armands G. (1972) Geochemical study of Uranium, Molybdenum and Vanadium in a Swedish Alum shale,Stockholm Contr. Geol.27, 1-148.
4. Baker G., Slater S. (2008) The increasing significance of coal seam gas in eastern Australia,PESA Eastern Australasian Basins Symposium III, Sydney.
5. Berner U., Kahl T., Scheeder G. (2010) Shale Gas Exploration – Hydrocarbon Potential of Sediments of the German Wealden Basin,Erdöl-Erdgas-Kohle126, 80-84.