1. Crosby, C.H., Bailey, J.V.: The role of microbes in the formation of modern and ancient phosphatic mineral deposits. Front. Microbiol. 3, 241 (2012)
2. Ollivier, B., Guyot, F.: Sulfate-reducing bacteria: a deep biosphere-early life connection? Environ. Microbiol. Rep. 1, 14–16 (2009)
3. Vatan, A.: Manuel de sédimentologie. In: Technip (ed.). Paris (2003)
4. Cayeux, L.: Études des gîtes minéraux de la France. Les phosphates de chaux sédimentaires de la France, vol. 1, p. 349. Paris (1940)
5. Dahanayake, K., Krmbein, W.E.: Ultrastructure of a microbial mat-generated phosphorite. Mineral. Dep. 205(4), 260–265 (1985)