@article{JGAA_2021_25_1_a23,
     author = {Aleksander Figiel and Anne-Sophie Himmel and Andr\'e Nichterlein and Rolf Niedermeier},
     title = {On {2-Clubs} in {Graph-Based} {Data} {Clustering:} {Theory} and {Algorithm} {Engineering}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {521--547},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {2021},
     doi = {10.7155/jgaa.00570},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00570/}
}