@unpublished{TUW-120582, author = {Todorova, Sonya and Hobiger, Thomas and Schuh, Harald}, title = {Kombiniere globale Modelle der Ionosph{\"a}re}, year = {2006}, note = {poster presentation: Geod{\"a}tische Woche, M{\"u}nchen; 2006-10-10 -- 2006-10-13} }