01018nas 2200349 c 450 99620017030331620171201122309.0(CKB)1000000000527100(DE-599)ZDB2428692-8(OCoLC)471676893(DE-101)988910454(EXLCZ)99100000000052710020080528b19001949 |y |engur|||||||||||txtrdacontentcrdamediacrrdacarrierPublications of the United States Naval ObservatoryDepartment of the Navy, US Naval ObservatoryWashington, DCUS Gov. Print. Off.1900-1949Online-RessourceNaval Observatory publicationsZeitschriftgnd-content5205108999DE-1019999JOURNAL996200170303316Publications of the United States Naval Observatory2016213UNISA