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General Motors Hy-wire Zero-emissions
vehicle Eberle, Ulrich; von Helmolt,
Rittmar (2010-05-14). "Sustainable
transportation based on
electric vehicle concepts:...
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Beach was
unveiled in 2018 and also
tested in the
Seattle area.
Eberle and
Rittmar von
Helmolt stated in 2010 that
challenges remain before fuel cell cars...
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Archived from the
original on
October 9, 2020. Eberle, Ulrich; von Helmolt,
Rittmar (May 14, 2010). "Sustainable
transportation based on
electric vehicle concepts:...
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November 10, 2012.
Retrieved July 18, 2012. Eberle, Ulrich; von Helmolt,
Rittmar (May 14, 2010). "Sustainable
transportation based on
electric vehicle concepts:...
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Wayback Machine. egawatt.org Eberle, Ulrich; Mueller, Bernd; von Helmolt,
Rittmar (2012). "Fuel cell
electric vehicles and
hydrogen infrastructure: status...
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August 2011 "The fuel cell
industry review 2013" (PDF). Eberle,
Ulrich and
Rittmar von Helmolt. "Sustainable
transportation based on
electric vehicle concepts:...
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Archived from the
original on 12
January 2023. Eberle, Ulrich; von Helmolt,
Rittmar (14 May 2010). "Sustainable
transportation based on EV concepts: a brief...
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Ending Magna Deal Sky News, 3
November 2009 Eberle, Ulrich; von Helmolt,
Rittmar (14 May 2010). "Sustainable
transportation based on
electric vehicle concepts:...
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original on 2010-02-07.
Retrieved 2010-03-10. Eberle, Ulrich; von Helmolt,
Rittmar (2010-05-14). "Sustainable
transportation based on
electric vehicle concepts:...
- 2021-01-26.
Retrieved 2020-08-30. Eberle, Ulrich; Mueller, Bernd; von Helmolt,
Rittmar (2012-07-15). "Fuel cell
electric vehicles and
hydrogen infrastructure:...