@unpublished{TUW-120942, author = {Tanir, Emine and Tornatore, V and B{\"o}hm, Johannes and Felstenstein, K. and Schuh, Harald}, title = {VLBI Intra-technique Combination for Kalman Filter and Least-Squares Solutions}, year = {2007}, note = {poster presentation: IUGG 2007, Perugia, Italien; 2007-07-02 -- 2007-07-13} }