@techreport{EndrissDeHaan15b,
 author = {Ulle Endriss and Ronald de Haan},
 institution = {Algorithms and Complexity Group, TU Wien},
 number = {AC-TR-15-010},
 title = {Complexity of the Winner Determination Problem in Judgment Aggregation: Kemeny, Slater, Tideman, Young},
 url = {http://www.ac.tuwien.ac.at/files/tr/ac-tr-15-010.pdf},
 year = {2015}
}