1. Salazar, R.; Blohm, N.; Molina, R. Proceedings of the 1st International Symposium Colloid Chemistry Oil Production, Asphaltenes and Wax Deposition, Rio, Brazil, Nov. 26−29, 1995; p 168.
2. Carbognani, L.; Espidel, Y. Proceedings of the 6th UNITAR International Conference on Heavy Crude and Tar Sands, Houston, TX, Feb. 12−17, 1995; p 551.