1. An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel
2. N.A. Collins, J.C. Trewella, US Patent 5,599,441 (1997) Mobil Oil Corporation.
3. G.A. Jr. Huff, O.S. Owen, B.D. Alexander, D.N. Rundell, W.J. Reagan, J.S. Yoo, US Patent 5,863,419 (1999) Amoco Corporation.
4. B.D. Alexander, G.A. Huff, V.R. Pradhan, W.J. Reagan, R.H. Cayton, US Patent 6,024,865 (2000) BP Amoco Corporation.