@incollection{TUW-120770, author = {Schuh, Harald}, title = {OCCAM - A modern VLBI software package with a long history}, booktitle = {OCCAM Version 5.0 Software User Guide}, year = {2001}, editor = {Titov, Oleg and Tesmer, V. and B{\"o}hm, Johannes}, pages = {3--4}, publisher = {AUSLIG}, address = {Canberra, Australien} }