Yitzhak Frenkel
[ca] Isaac Frenkel Frenel
[de] Yitzhak Frenkel Frenel
[eo] Isaac Frenkel Frenel
[es] Isaac Frenkel Frenel
[fr] Alexandre Frenel
[he] יצחק פרנקל פרנל
[ja] アイザック・フレンケル・フレネル
[nb] Isaac Frenkel Frenel
[pl] Icchak Frenkel
[pt] Isaac Frenkel Frenel