Ernst Jacobsthal
[arz] ارنست جاكوبثال
[ca] Ernst Jacobsthal
[de] Ernst Jacobsthal
[ht] Ernst Jacobsthal
[nn] Ernst Jacobsthal
[nb] Ernst Jacobsthal
[pt] Ernst Jacobsthal
[ru] Якобсталь, Эрнст Эрих
[sv] Ernst Jacobsthal