^Claudia Maurer Zenck, Peter Petersen (Ed.), Sophie Fetthauer (Assistant): Israel Alter (look up under External links)
^hand-written note by Benjamin Z. Maissner, November 10, 2013, with the remark that Alter was born on the High Holiday of يوم الغفران in the year 1901; compare the تقويم عبري for 1901 under [1]نسخة محفوظة 25 يوليو 2018 على موقع واي باك مشين.
