To cite the service as such, we suggest the following BibTeX entry:
@MISC{vo:LAMOST_DR5_Web, year=2019, title={{LAMOST} DR5 Spectra Web Interface}, author={Stellar Department, Czech Acad. of Sciences}, url={http://vos2.asu.cas.cz/lamost_dr5/q/web/info}, howpublished={{VO} resource provided by the {AIASCR} VO Services} }