Second catalog of hourly meteor ratesDOI: info:10.5479/si.00810231.8-6.171v. 8No. 6Smithsonian Institution171–180
Olivier, Charles P. 1965. "Second catalog of hourly meteor rates." Smithsonian Contributions to Astrophysics, 8, (6) 171–180. https://doi.org/10.5479/si.00810231.8-6.171.