@unpublished{TUW-239099, author = {Teke, Kamil and B{\"o}hm, Johannes and Madzak, Matthias and Kwak, Younghee and Steigenberger, Peter}, title = {GNSS zenith delays and gradients in the analysis of VLBI Intensive sessions}, year = {2015}, note = {talk: 22nd Meeting of the European VLBI Group for Geodesy and Astrometry, Azores; 2015-05-15 -- 2015-05-21} }