1. Ordered topological spaces;Eilenberg;Am. J. Math.,1941
2. A theorem of the Hahn-Banach type for linear transformations;Nachbin;Trans. Am. Math. Soc.,1950
3. Nachbin, L. (1965). Topology and Order, Van Nostrand. Translation of Topologia e Ordem; University of Chicago Press: Chicago, IL, USA, 1950. (In Portuguese).
4. Thrall, R.M., Coombs, C.H., and Davis, R.L. (1954). Decision Processes, Wiley.
5. Debreu, G. (1959). Topological Methods in Cardinal Utility Theory, Cowles Foundation. Discussion Papers 299.