TY - BOOK ID - 139735663 TI - Precision orbits of 413 photographic meteors AU - Jacchia, Luigi Giuseppe AU - Whipple, Fred.L. PY - 1961 PB - Washington Smithsonian Institution. Astrophysical Observatory DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:139735663 AB - ER -