@techreport{TUW-174077, author = {Bartsch, Annett and Wagner, Wolfgang and Sabel, Daniel and Pathe, Carsten and Doubkova, Marcela}, title = {SHARE - extention. Mid-term Report}, institution = {E120 - Department of Geodesy and Geoinformation; Vienna University of Technology}, year = {2008}, number = {ESRIN Contract No. 19420/05/I-EC} }