@techreport{GanianKanjOrdyniakSzeider20tr,
 author = {Robert Ganian and Iyad Kanj and Sebastian Ordyniak
and Stefan Szeider},
 institution = {Algorithms and Complexity Group, TU Wien},
 number = {AC-TR-20-002},
 title = {On the Parameterized Complexity of Clustering},
 url = {http://www.ac.tuwien.ac.at/files/tr/ac-tr-20-002.pdf},
 year = {2020}
}