@unpublished{TUW-119429, author = {Kahmen, Heribert}, title = {Combined Evaluation of Geodetic and Geotechnical Data during Tunnel Excavation by Use of a Knowledge-Based System}, year = {2003}, note = {talk: 23. IUGG General Assembly, Sapporo, Japan; 2003-06-30 -- 2003-07-11} }