@incollection{ 0-1464859892, title = {The combination of ground-based astrometric compilation catalogues with the HIPPARCOS catalogue: I. Single-star mode}, journal = {Astronomy and astrophysics}, volume = {347}, pages = {1046-1054}, author = {Wielen, Roland and Lenhardt, Helmut and Schwan, Heiner and Dettbarn, Christian}, year = {1999}, issn = {1432-0746}, language = {English}, note = {Gesehen am 29.10.2013}, url = {http://adsabs.harvard.edu/full/1999A%26A...347.1046W}, url = {https://katalog.ub.tu-freiberg.de/Record/0-1464859892} }