Potter, Keith. “Review of 1971/03/25 Concert at Birmingham and Midland Institute, Margaret Street, Birmingham. Lunchtime Concert of Works by Laurence Williamson, Peter Bullock (first Performances) Poulenc, Horowitz and Holborne, Given by Students from Birmingham Universi”. Contact: A Journal for Contemporary Music (1971-1990), no. 2 (June 1, 1971). Accessed November 22, 2024. https://goldojs-prod.leaf.cosector.com/index.php/contactjournal/article/view/contactjournal02_p29.