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| 2011 | Sectoral endogenous growth by education in a system dynamics model
Helfrich, N.D. | Dissertation |
| 2010 | The iTREN-2030 Integrated Scenario until 2030
Schade, W.; Krail, M.; Fiorello, D.; Helfrich, N.; Köhler, J.; Kraft, M.; Maurer, H.; Meijeren, J.; Newton, S.; Purwanto, J.; Schade, B.; Szimba, E. | Report |
| 2009 | ADAM adaptation and mitigation strategies supporting european climate policy
Jochem, E.; Schade, W.; Helfrich, N.; Barker, T.; Scrieciu, S. | Report |
| 2009 | Adaptation and mitigation strategies supporting european climate policy
Jochem, E.; Schade, W.; Helfrich, N.; Barker, T.; Scrieciu, S. | Report |
| 2009 | EmployRES. The impact of renewable energy policy on economic growth and employment in the European Union
Ragwitz, M.; Schade, W.; Breitschopf, B.; Walz, R.; Helfrich, N.; Rathmann, M.; Resch, G.; Panzer, C.; Faber, T.; Haas, R.; Konstantinaviciute, I.; Zagamé, P.; Fougeyrollas, A.; Hir, B. le | Report |
| 2009 | A system dynamics approach for modelling a lead-market-based export potential
Walz, R.; Helfrich, N.; Enzmann, A. | Report |
| 2008 | Bringing distributed software development to SD modelling with vensim
Helfrich, N.; Schade, W. | Conference Paper |
| 2008 | Innovationsdynamik und Wettbewerbsfähigkeit Deutschlands in grünen Zukunftsmärkten
Walz, R.; Ostertag, K.; Doll, C.; Eichhammer, W.; Frietsch, R.; Helfrich, N.; Marscheider-Weidemann, F.; Sartorius, C.; Fichter, K.; Beucker, S.; Schug, H. | Report |
| 2008 | Politikszenarien für den Klimaschutz IV. Szenarien bis 2030
Matthes, F.C.; Gores, S.; Graichen, V.; Harthan, R.O.; Markewitz, P.; Hansen, P.; Kleemann, M.; Krey, V.; Martinsen, D.; Eichhammer, W.; Doll, C.; Helfrich, N.; Müller, L.; Schade, W.; Schlomann, B. | Report |
| 2008 | Scenarios, Policies and Impacts for the Linked Transport and Energy Systems - Results of the European TRIAS Project
Schade, W.; Helfrich, N.; Krail, M.; Fiorello, D.; Fermi, F.; Schade, B. | Conference Paper |
| 2007 | TRIAS - sustainability impact assessment of strategies integrating transport, technology and energy scenarios
Schade, W.; Wietschel, M.; Helfrich, N.; Hasenauer, U.; Krail, M.; Kraft, M.; Scholz, A.; Martino, A.; Fiorello, D.; Fermi, F.; Christidis, P.; Schade, B.; Purwanto, J. | Conference Paper |