Médard Thiry, Jean Galbois, Jean-Michel Schmitt. Unusual phosphate concretions related to groundwater flow in a continental environment..
Journal of Sedimentary Research, Society for Sedimentary Geology, 2006, 76, pp.866-870.
⟨10.2110/jsr.2006.067⟩.
⟨hal-00646828⟩