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found: Prinzipien der Pflanzenethik, c2002: t.p. (Angela Kallhoff) half t.p. (scientific assistant at Philosophical Seminar, Univ. Münster; also at Center for Environmental Studies, Univ. Münster)
found: Why democracy needs public goods, c2011: ECIP t.p. (Angela Kallhoff) data view (Angela Kallhoff, b. May 13, 1968)