@incollection{TUW-119658, author = {Niemeier, Wolfgang and Kahmen, Heribert}, title = {Integrated Optimization of Landslide Alert Systems - EU Project OASYS}, booktitle = {Heft 250, Festschrift H. Pelzer}, year = {2004}, pages = {177--184}, publisher = {Wissenschaftliche Arbeiten der Fachgruppe Vermessungswesen der Universit{\"a}t Hannover}, address = {Hannover}, note = {invited} }