How to cite ivo://ksb-orb.dc/uset_sunspot_drawing/q/usetdr

Reference the Service

To cite the service as such, we suggest the following BibTeX entry:

@MISC{vo:Drawings_form,
  year=1940,
  title={{USET} Drawings form},
  author={Freek Verstringe},
  url={https://vo-tap.oma.be/uset_sunspot_drawing/q/usetdr/info},
  howpublished={{VO} resource provided by the {KSB}-{ROB}}
}

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This research has been made at the Royal Observatory of Belgium