Godfrey Louis; A. Santhosh Kumar (2006). "The red rain phenomenon of Kerala and its possible extraterrestrial origin". Astrophysics and Space Science302 (1–4): 175–87. doi:10.1007/s10509-005-9025-4. Bibcode: 2006Ap&SS.302..175L.
Godfrey Louis; A. Santhosh Kumar (2006). "The red rain phenomenon of Kerala and its possible extraterrestrial origin". Astrophysics and Space Science302 (1–4): 175–87. doi:10.1007/s10509-005-9025-4. Bibcode: 2006Ap&SS.302..175L.
Godfrey Louis; A. Santhosh Kumar (2006). "The red rain phenomenon of Kerala and its possible extraterrestrial origin". Astrophysics and Space Science302 (1–4): 175–87. doi:10.1007/s10509-005-9025-4. Bibcode: 2006Ap&SS.302..175L.
Godfrey Louis; A. Santhosh Kumar (2006). "The red rain phenomenon of Kerala and its possible extraterrestrial origin". Astrophysics and Space Science302 (1–4): 175–87. doi:10.1007/s10509-005-9025-4. Bibcode: 2006Ap&SS.302..175L.