@unpublished{TUW-209059, author = {Plank, Lucia and Madzak, Matthias and B{\"o}hm, Johannes and Schuh, Harald}, title = {Project PN4 - ties between kinematic and dynamic reference frames}, year = {2012}, note = {invited; talk: 1st Project Meeting DFG Research Group FOR1503 (Referenzsysteme), Bonn, Germany; 2012-05-02 -- 2012-05-03} }