Games and incomplete information
Wallmeier H-M (1987) Working Papers. Center for Mathematical Economics; 161. Bielefeld: Center for Mathematical Economics.
Demand theory
Böhm V, Haller H (1987) In: The new Palgrave: a dictionary of economics: A to D. Eatwell J, Palgrave RHI (Eds); The new Palgrave dictionary of economics, 1. London: Macmillan: 785-792.