Sefer Shamayim ḥadashim ʿal pirke ha-Rambam le-hakhriʿa daʿat ha-ḥidush ʿal daʿat ha-kadmut = Sefer Shamayim hadashim : Based on questions of eternity and creation in Maimonides "Guide of the perplexed" - Abravanel, Yitsḥaḳ 1437-1508 (Sifriyah le-maḥshevet Yiśraʾel, 1966)