Joseph Peles, "3. 1948-1960: 'Silence', philosophy and inner growth" and "4. From 1960 to 1964: The last works", in his article "Alexander Uriyah Boskovich". This article was originally published as part of the mini-monograph Alexander Uriyah Boskovich, edited by Uri Golomb (Tel Aviv: Israel Music Institute, 2016), and later published on the Alexander Uriyah Boskovich memorial website (https://alexander-uriyah-boskovich.org/en/home/).