@unpublished{TUW-190640, author = {Engel, Theo and Lahr, Bodo and Kaufmann, J. and Weber, Robert and others}, title = {Building up on railway coordinates}, year = {2010}, note = {talk: XXIV FIG International Congress 2010, Sydney; 2010-04-11 -- 2010-04-16} } @comment { WARNING: In the original publication record, the list of names in the field 'author' contains the addition 'et al.'! }