N. Hummel

发表

H. Gersbach, N. Hummel, 2009, SSRN Electronic Journal.

H. Gersbach, Ralph Winkler, N. Hummel, 2011, SSRN Electronic Journal.

H. Gersbach, Ralph Winkler, N. Hummel, 2021, Environmental and Resource Economics.

H. Gersbach, N. Hummel, 2011 .