@unpublished{TUW-183158, author = {Schuh, Harald}, title = {The IVS on its way to the next generation VLBI system}, year = {2009}, note = {talk: Universidade Estado Federal Sao Paulo (Unesp), Presidente Prudente, Sao Paulo, Brasilien; 2009-08-19 -- 2009-08-21} }