Montague, Stephen. 1981. “Review of Introduction to Composition by Bogusław Schäffer, Translated by Jerzy Zawadski, Eds. Stefan Ehrenkreutz and Ludomira Stawowy”. Contact: A Journal for Contemporary Music (1971-1990), no. 23 (December). https://doi.org/10.25602/GOLD.cj.v0i23.1182.