1. Biasca, F. E.; Dickenson, R. L.; Chang, E.; Johnson, H. E.; Bailey, R. T.; Simbeck, D. R.In upgrading heavy crude oils and residue to transportation fuel: technology economics, and outlook, Phase 7 (Garland R. Report Coordinator).SAF Pacific Inc. Eng. & Economic Consultant May 2003.
2. Petrobras extends PDVSA’s deadline for Abreu e Lima refinery.Worldwide Refining Business Digest Weekly. 2011, 24.