1. Low-sulfur specifications cause refiner to look at hydrotreating options;Upson;Oil Gas J.,1997
2. Impact of gasoline and diesel specifications on the refining industry;Anabtarri;Energy Sources,1996
3. A.P. Yu, E.C. Myers, U.S. Patent 4,132,632 (1979).
4. C. Sudhakar, U.S. Patent 5,851,382 (1998).