Jean-Philippe Bouchaud and Marc Potters,
"Theory of Financial Risks: From Statistical Physics to Risk Management",
Cambridge University Press (2000).
J.-P. Bouchaud and D. Sornette,
"The Black-Scholes option pricing problem in mathematical finance:
Generalization and extensions for a large class of stochastic processes",
J.Phys.I France 4, 863-881 (1994)
D. Sornette, A. Johansen and J.-P. Bouchaud,
"Stock market crashes, Precursors and Replicas",
J.Phys.I France 6, n1, 167-175 (1996)