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REPIC Workshop Biomass - 15 April 2010, Fribourg
REPIC Workshop Small Hydropower - 30 November 2010, Bern
REPIC Seminar 2009 - 23 April 2009, Fribourg
Biofuel Seminar - 31 October 2006, Bern
SAEE Jahrestagung - 1 September 2006, Bern
REPIC Seminar 2005 - 21 September 2005, Bern
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