Wichmann Matthiessen, Christian. “B. A. Christensen and C. Jensen-Butler: Energy and Urban Structure: Heat Planning in Denmark. (Progress in Planning: 18 (1982)2)”. Geografisk Tidsskrift 83 (januar 1, 1983). Set december 7, 2025. https://tidsskrift.dk/geografisktidsskrift/article/view/44948.