Statistical equilibrium in simple exchange games I - Methods of solution and application to the Bennati-Dragulescu-Yakovenko (BDY) gameE. Scalas, U. Garibaldi and S. DonadioEur. Phys. J. B, 53 2 (2006) 267-272DOI: https://doi.org/10.1140/epjb/e2006-00355-x