Optimal pollution control, irreversibilities, and the value of future information. - Rüdiger Pethig (Ann. Oper. Res., 1994)

Efficient nonanthropocentric nature protection. - Thomas Eichner; Rüdiger Pethig (Soc. Choice Welf., 2006)

Pricing the ecosystem and taxing ecosystem services: A general equilibrium approach. - Thomas Eichner; Rüdiger Pethig (J. Econ. Theory, 2009)