1. Baum, A. (1995, “Can foreign real estate investment be successful?”, Real Estate Finance, pp. 81‐9.
2. Neural modeling for time series: A statistical stepwise method for weight elimination
3. Crosby, N., Ward, C. and French, N. (1993, “Valuation accuracy: a self‐fulfilling prophecy?”, RICS Cutting Edge Conference Proceedings, London, pp. 67‐75.
4. Cullen, I. (1994, “The investment property databank: the accuracy of valuations re‐visited”, RICS Cutting Edge Conference Proceedings, London, pp. 91‐102.
5. Approximation by superpositions of a sigmoidal function