Derman, E.; Iraj Kani (January 1994). "Riding on a Smile"(PDF). Quantitative Strategies Research Notes. Goldman Sachs. Archived from the original(PDF) on July 10, 2011. Retrieved June 1, 2007.
Bruno Dupire (July 2007) [January 1994]. "Pricing with a Smile"(PDF). Risk. Archived from the original(PDF) on September 7, 2012. Retrieved June 14, 2013.
Bruno Dupire (July 2007) [January 1994]. "Pricing with a Smile"(PDF). Risk. Archived from the original(PDF) on September 7, 2012. Retrieved June 14, 2013.
Derman, E.; Iraj Kani (January 1994). "Riding on a Smile"(PDF). Quantitative Strategies Research Notes. Goldman Sachs. Archived from the original(PDF) on July 10, 2011. Retrieved June 1, 2007.