To cite the service as such, we suggest the following BibTeX entry:
@MISC{vo:BIRA_IASB_TAP, year=2009, title={{VESPA} PA team server {TAP} service}, author={Loic Trompet}, url={http://vespa-ae.oma.be/__system__/tap/run/info}, howpublished={{VO} resource provided by the {VESPA} PA team server} }