@techreport{DeHaanSzeider15c,
 author = {Ronald de Haan and Stefan Szeider},
 institution = {Algorithms and Complexity Group, TU Wien},
 number = {AC-TR-15-009},
 title = {Machine Characterizations for Parameterized Complexity Classes Beyond Para-NP},
 url = {http://www.ac.tuwien.ac.at/files/tr/ac-tr-15-009.pdf},
 year = {2015}
}