1. Butzer , K. 1976 Early hydraulic civilization in Egypt: a study in cultural ecology.
2. De Drususgrachten: een nieuwe hypothese;Huisman;Westerheem,1995
3. The canal of Xerxes: facts and problems;Isserlin;Annual of the British School at Athens,1991
4. Three canal projects, Roman and Byzantine;Moore;American Journal of Archaeology,1950
5. Roman canals;Smith;Transactions of the Newcomen Society,1977-8