Sieradz, M. “’Witold Lutosławski. Correspondence With His Western Publishers and Managers. 1966–1994’, Ed. Zbigniew Skowron, Vol. 1–2, Kraków 2018”. Muzyka, vol. 66, no. 4, Dec. 2021, pp. 148-54, doi:10.36744/m.1079.