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Buehler, Ralph (2015) The U.S. can learn from Germany’s successful transport policies to reduce CO2 emissions and petroleum dependence. USApp– American Politics and Policy Blog (17 Jul 2015). Website.
Buehler, Ralph (2015) While Americans are not yet giving up their cars, they are increasingly taking up walking, cycling, and public transport as well. USApp – American Politics and Policy Blog (12 Mar 2015). Website.