Sippel, M. (2004). Global Climate Policy and Correspondending Activies on a City-Level: A Case of Hamburg and Its Citypartnerships With a Special Focus on CDM-Potentials.
Lua i Stíl Chicago (17ú heag.)Sippel, Maike. Global Climate Policy and Correspondending Activies on a City-Level: A Case of Hamburg and Its Citypartnerships With a Special Focus on CDM-Potentials. Hamburg, 2004.
Lua MLA (8ú heag.)Sippel, Maike. Global Climate Policy and Correspondending Activies on a City-Level: A Case of Hamburg and Its Citypartnerships With a Special Focus on CDM-Potentials. 2004.
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