This service has an associated publication. If you use its data, it may be appropriate to reference https://github.com/mattiaverga/OpenNGC either in addition to or instead of the service reference.
To cite the service as such, we suggest the following BibTeX entry:
@MISC{vo:openNGC, year=2017, title={{OpenNGC}}, author={Verga, M.}, url={https://dc.zah.uni-heidelberg.de/openngc/q/web/info}, howpublished={{VO} resource provided by the {GAVO} Data Center}, doi = {10.21938/y.1ejWUD_MQ6b_eDFoVbbw} }
Some services have additional advice or requests on citing in their copyright information. For this service, that is: