@misc{indiciaea00439810c86,
  title = {Bonner Durchmusterung (Argelander 1859-1862): Documentation for the machine-readable version},
  author = {Warren, Wayne H., Jr. and Ochsenbein, Francois},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19910021724},
  note = {Source identifier: 19910021724}
}