@unpublished{TUW-275208, author = {Schartner, Matthias and Mayer, David}, title = {Introduction to Least Squares Adjustment for geodetic VLBI}, year = {2017}, note = {invited; talk: AVN Observational and Technical Radio Astronomy Training School, Hartebeesthoek, South Africa; 2017-03-06 -- 2017-03-24} }