@techreport{59983,
  author = {Aisma Vitina and Silke L{\"u}ers and Anna-Kathrin Wallasch and Volker Berkhout and Aidan Duffy and Brendan Cleary and Lief I Husab{\o} and David E Weir and Roberto Lacal-Ar{\'a}ntegui and M Maureen Hand and Eric Lantz and Kathy Belyeu and Ryan H Wiser and Mark Bolinger and Ben Hoen},
  title = {IEA Wind Task 26:  Wind Technology, Cost, and Performance Trends in Denmark, Germany, Ireland, Norway, the European Union, and the United States: 2007{\textendash}2012},
  year = {2015},
  month = {06/2015},
  institution = {National Renewable Energy Laboratory (NREL)},
  publisher = {National Renewable Energy Laboratory (NREL)},
  issn = {NREL/TP-6A20-64332 },
}