1. A survey of meteor spectra and orbits: Evidence for three populations of Na-free meteoroids;Borovička;Icarus,2005
2. The physics of meteoritic phenomena;Bronshten,1981
3. Geometric, dynamic, orbital and photometric data on meteoroids from photographic fireball networks;Ceplecha;Bull. Astron. Inst. Cz.,1987
4. Fischer W.J., 1930, Harvard College Observatory Circular, 346, 1
5. Orbits of Ancient and Medieval Comets;Hasegawa;Publ. Astron. Soc. Jpn.,1979