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Cont, Rama and Voltchkova, Ekaterina (2005) Integro-Differential Equations for Option Prices in Exponential Lévy Models. Finance and Stochastics, 9 (3). pp. 299-325.
Cont, Rama and Voltchkova, Ekaterina (2005) A finite difference scheme for option pricing in jump diffusion and exponential Lévy models. SIAM Journal on Numerical Analysis (SINUM), 43 (n°4). pp. 1596-1626.