To cite the service as such, we suggest the following BibTeX entry:
@MISC{vo:DaCHS_standin_TAP, year=2009, title={{CDN} VO Server {TAP} service}, author={Could be same as contact.name}, url={http://vogate.obs-nancay.fr/__system__/tap/run/info}, howpublished={{VO} resource provided by the {CDN} VO Server} }