1. Ahl V, Allen TFH (1996) Hierarchy theory: a vision, vocabulary, and epistemology. Columbia University Press, New York
2. Allen TFH (2009) Hierarchy theory in ecology. In: Jorgensen SE (ed) Ecosystem ecology – a derivative of encyclopedia of ecology. Elsevier, Amsterdam, pp 114–120
3. Allen TFH, Hoekstra TW (1992) Toward a unified ecology. Columbia University Press, New York
4. Allen TFH, Starr TB (1982) Hierarchy: perspectives for ecological complexity. University of Chicago Press, Chicago
5. Allen TFH, O’Neill RV, Hoekstra TW (1984) Interlevel relations in ecological research and management: some working principles from hierarchy theory. USDA Forest Service General Tech Report RM-110, Rocky Mountain Forest and Range Experiment Station, Fort Collins