To cite the service as such, we suggest the following BibTeX entry:
@MISC{vo:eiulhwlanwta, year=2012, title={{RegTAP} examples}, author={The {GAVO} data center team}, url={http://gavo.aip.de/rr/q/ex/info}, howpublished={{VO} resource provided by the {AIP} {DaCHS}} }