TY - BOOK ID - 137670037 TI - Precision orbits of 413 photographic meteors AU - Jacchia, Luigi Giuseppe. AU - Whipple, George Chandler PY - 1961 PB - Washington (D.C.): Smithsonian institution DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:137670037 AB - ER -