@inproceedings{Kopf_2005d,
	author = {Stephan Kopf and Thomas King and Wolfgang Effelsberg},
	title = {Improving the Accuracy of {GPS}},
	booktitle = {Proceedings of 2. GI/ITG KuVS Fachgespr\"ach Ortsbezogene Anwendungen und Dienste},
	year = {2005},
	month = {June},
	location = {Stuttgart, Germany},
}