1. Improved attribution of climate forcing to emissions;Shindell;Science,2009
2. Methane and the greenhouse-gas footprint of natural gas from shale formations;Howarth;Climatic Change,2011
3. Natural emissions of methane from geological seepage in Europe;Etiope;Atmospheric Environment,2009
4. Berthier M., Honegger J.L., Eberentz P. Etude et travaux pour le renforcement en gaz de la Fontaine Ardente – Commune du Gua (Isère). BRGM report R33584 RHA 4S/91 (1991) 13p. + annexes.
5. Kloppmann W., Blessing M., Proust E., Gal F., Bentivegna G., Henry B., Defossez P., Catherine C., Humez P., Mayer B., Millot R., Gaucher E. Natural gas seeps in the French Alps: Sources and pathways. Geophysical Research Abstracts Vol. 18 (2016) pp14484.