1. Lichaa PM. Herrera. Society of Petroleum Engineers Paper 5304, 1975.
2. Sahimi M. Flow and transport in porous media and factured rock, VCH, Weinheim, Germnay, 1975.
3. Aspbaltenes and Asphalts, Vol. 1, ed. T.F. Yen and G.V. Chilingarian, Elsevier, Amsterdam, 1994.
4. Problems about asphatenes in Hassi Messaoud, Laribi S, Ziada A, Baba Aissa A. Annual Report of Sonatrach, Algeria, 1995.
5. Asphalt flocculation and deposition IV. Dynamic evolution of the heavy organic compounds