%0 Journal Article
%A F. E. Benth
%A Kenneth Hvistendahl Karlsen
%A K. Reikvam
%T A semilinear Black and Scholes partial differential equation for valuing American options: approximate solutions and convergence
%J Interfaces and free boundaries
%D 2004
%P 379-404
%V 6
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4171/ifb/106/
%R 10.4171/ifb/106
%F 10_4171_ifb_106