@unpublished{TUW-168949, author = {Nordman, Maaria and Eresmaa, R. and B{\"o}hm, Johannes and Poutanen, Markku and Koivula, H. and J{\"a}rvinen, H.}, title = {The use of Troposphere Slant Delays in Regional Double Difference GPS Computation}, year = {2008}, note = {poster presentation: AGU Fall Meeting San Francisco, San Francisco; 2008-12-15 -- 2008-12-19} }