1. Abramowitz, M., Stegun, I.: Handbook of Mathematical Functions. With Formulas, Graphs, and Mathematical Tables. Dover, New York (1968)
2. Achdou, Y., Pironneau, O.: Computational Methods for Option Pricing. SIAM, Philadelphia (2005)
3. Adams, R.A.: Sobolev Spaces. Academic Press, New York (1975)
4. AitSahlia, F., Carr, P.: American options: a comparison of numerical methods. In: Rogers, L.C.G., Talay, D. (eds.) Numerical Methods in Finance, pp. 67–87. Cambridge University Press, Cambridge (1997)
5. Alfonsi, A.: On the discretization schemes for the CIR (and Besselsquared) processes. Monte Carlo Methods Appl. 11, 355–384 (2005)