28th Congress of the International-Association-of-Hydraulic-Research, Graz, Austria, 01 August 1999, pp.43-46
Forchheimer has dealt with the remains of ancient water supply systems of Istanbul and Ephesus during his stay in Turkey in the periods of 1889-1891 and 1914-1918. His findings were published in 1890 in the "Zeitschrift des Vereins Deutscher Ingenieure", in 1893 as a book in Vienna with J. Strzygowski as co-author, and in 1923 as part of book of the Austrian Archeological Institute.