Tableaux de voyage : œuv. 33 : treize pièces pour le piano /

Mode of access: Internet.

Electrons (+ and -), protons, photons, neutrons, and cosmic rays,

"Published January 1935. Fifth impression May 1941."

Sefer Tumat yesharim : kolel derakhim metsuyanim u-gedarim neʼotim le-yasher ha-levavot, ekh le-eḥoz be-darkhe ha-emunot ṿeha-deʻot ʻa. p. ha-temimut ṿeha-haśkalah ṿe-yirʼar H. ha-ṭehorah : ṿe-nilṿeh la-zeh heʻarot mi-beʾure pesuḳim u-maʾamre Ḥazal ha-mityaḥasim le-ʻinyene ha-sefer be-ṭuv ṭaʻam ṿa-daʻat /

Mode of access: Internet.