@unpublished{TUW-120911, author = {Mendes Cerveira, Pj. and Wresnik, J{\"o}rg and B{\"o}hm, Johannes and Hobiger, Thomas and Kondo, Tetsuro and Weber, Robert and Salstein, David A. and Schuh, Harald}, title = {Semi-hourly polar motion and universal time series from the VLBI CONT02 data set}, year = {2007}, note = {poster presentation: IUGG 2007, Perugia, Italien; 2007-07-02 -- 2007-07-13} }