1. Denning, F. W. (1918). Meteoric showers of October. The Observatory, 41, 60.
2. Prentice, J. P. M. (1939). The radiants of the orionid meteor shower. Journal of the British Astronomical Association, 49, 148.
3. Znojil, V. (1968). Frequency occurrence of small particles in meteor showers. II. Orionids, ε-Geminids. Bulletin of the Astronomical Institute of Czechoslovakia, 19, 311.
4. Benzenberg, J. F., & Brandes, H. W. (1800). An attempt to determine the distance, speed and orbit of shooting stars. Annalen der Physik, 6, 224.
5. Quetelet, L. A. J. (1845). Catalogue of the main appearances of shooting stars. Nouveaux Mémoires de l’Académie Royale des Sciences et Belles-Lettres de Bruxelles, 12, 23.