Citation: M. Drechsler et F. Watzold, The importance of economic costs in the development of guidelines for spatial conservation management, BIOL CONSER, 97(1), 2001, pp. 51-59
Citation: F. Watzold, Efficiency and applicability of economic concepts dealing with environmental risk and ignorance, ECOL ECON, 33(2), 2000, pp. 299-311