1. Aspila K. I. Agemian H. and Chau A. S. Y. (1976). Semi-automated method
2. for determination of inorganic organic and total phosphate in sediments. Ana
3. lyst 101(1200) 187-197 doi:10.1039/an9760100187
4. Behar F. Beaumont V. and Penteado H. L. D. (2006). Rock-Eval 6 technol
5. ogy: Performances and developments. Oil & Gas Science and Technology-Revue