Pappfahrrad (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pappfahrrad" in German language version.

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bbc.co.uk

  • Cardboard bicycle. BBC, 16. Juni 2008, abgerufen am 26. Januar 2013: „If you make a bicycle from cardboard, no-one will want to steal it!“

cnn.com

csmonitor.com

economist.com

  • Re-cycling, The Economist, 1. Dezember 2012. Abgerufen am 26. Januar 2013 „First, he folds the cardboard—commercial-grade material, made from recycled paper“ 

espacenet.com

worldwide.espacenet.com

  • Patentanmeldung EP2507122A1: Fahrrad aus recyclingfähigem Karton. Angemeldet am 6. Dezember 2010, veröffentlicht am 10. Oktober 2012, Erfinder: Tsafrir Bashan, Izhar Gafni.

gizmag.com

gizmodo.com

indiegogo.com

livestrong.com

  • Karen S. Garvin: Renewable & Nonrenewable Materials. Livestrong Foundation, 21. November 2011, abgerufen am 26. Januar 2013: „Renewable materials are sustainable materials, which means, according to the Rutgers University Center for Sustainable Materials, these materials do not use up non-renewable resources. These raw materials are abundant and biodegradable, and are used to make diverse products such as adhesives and cardboard.“

npr.org

redirecter.toolforge.org

  • Deborah Netburn: Ride on! $20 cardboard bike may go into production soon. The Los Angeles Times, 16. Oktober 2012, archiviert vom Original am 27. Dezember 2012; abgerufen am 26. Januar 2013 (englisch): „And because it is made of cardboard, it will also be cheap“

shu.ac.uk

spiegel.de

timesofisrael.com

web.archive.org

  • Deborah Netburn: Ride on! $20 cardboard bike may go into production soon. The Los Angeles Times, 16. Oktober 2012, archiviert vom Original am 27. Dezember 2012; abgerufen am 26. Januar 2013 (englisch): „And because it is made of cardboard, it will also be cheap“

wiwo.de