1. The physical theory of meteors;Cook,1968
2. Yet another stream search among 2401 photographic meteors;Cook;Smithsonian Contr. Astrophys.,1973
3. Ground based observations of the zodiacal light;Dumont,1976
4. In-situ records of interplanetary dust particles—methods and results;Fechtig,1976
5. Photometry of the zodiacal light with the balloon-borne telescope THISBE;Frey;Astron. Astrophys.,1974