Omar Khayyam, Edward FitzGerald, Christopher Decker (1997). “Edward FitzGerald, Rubáiyát of Omar Khayyám: A Critical Edition”, p.119, University of Virginia Press
"She's worth $100m, runs a $400m hedge fund, has two sets of twins and four nannies". Interview with Marianne MacDonald, www.theguardian.com. September 9, 2007.