Iterbium Reza Oktovian Northrop YB-49 Convair YB-60 Northrop YB-35 2006 YB Boeing YB-40 Flying Fortress 2010 YB (137799) 1999 YB Boeing YB-9 Iterbium(III) klorida Iterbium(III) iodida Iterbium(II) klorida Lutesium ortovanadat yang didoping iterbium Y.B. Mangunwijaya YbGaGe Iterbium(II) fluorida Iterbium(II) iodida Iterbium(III) bromida Iterbium(III) fluorida