Friend, Howard C. 1971. “Review of 1971/11/11 Concert at St. Francis Hall (University of Birmingham) Lunchtime Concert of Works by Christian Wolff, LaMonte Young, David Jones and Keith Potter”. Contact: A Journal for Contemporary Music (1971-1990), no. 3 (September). https://doi.org/10.25602/GOLD.cj.v0i3.877.