Poppers, Jakob: Šû"t Šav Yaʿaqōv ... še-ḥîbbēr ... Yaʿaqōv Ben- ... Binyāmîn ... mip-Prâgשו"ת שב יעקב חלק ראשון. Franqfûrṭ de-Mayn, (5502 [1741/42])
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