November 20, 2023 Leonard, B., & Regan, S. (2019). Legal and Institutional Barriers to Establishing Non-Use Rights to Natural Resources. Natural Resources Journal, 59(1), 135–180. Home » Leonard, B., & Regan, S. (2019). Legal and Institutional Barriers to Establishing Non-Use Rights to Natural Resources. Natural Resources Journal, 59(1), 135–180.