Ducey, M. J., & Larson, B. C. (1999). A fuzzy set approach to the problem of sustainability. Forest ecology and management, 115(1), 29-40. https://doi.org/10.1016/S0378-1127(98)00433-2
Chicago-Zitierstil (17. Ausg.)Ducey, Mark J., und Bruce C. Larson. "A Fuzzy Set Approach to the Problem of Sustainability." Forest Ecology and Management 115, no. 1 (1999): 29-40. https://doi.org/10.1016/S0378-1127(98)00433-2.
MLA-Zitierstil (9. Ausg.)Ducey, Mark J., und Bruce C. Larson. "A Fuzzy Set Approach to the Problem of Sustainability." Forest Ecology and Management, vol. 115, no. 1, 1999, pp. 29-40, https://doi.org/10.1016/S0378-1127(98)00433-2.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.