1. C. Higman M. van der Burgt Gasification, 2 nd edition; Elsevier (Gulf Professional Publishing), Burlington, MA, USA; 2008; 435 pp
2. “Gasification Markets and Technologies - Present and Future - An Industry Perspective”; US DOE/FE Report 0447; US DOE; (July, 2002); 55 pp
3. K. S. Kwong C. A. Powell J. Bennett R. Chinn A.V. Petty “Use of Phosphates to Reduce Slag Penetration in Cr 2 O 3 -Based Refractories.”; US Patent No. 6,815,386
4. Failure Mechanisms in High Chrome Oxide Gasifier Refractories;Bennett;Met. and Mat. Trans. A,Apr. 2011