@article{CMUC_2009_50_2_a1,
     author = {Gago, Silvia and Schlatter, Dirk},
     title = {Bounded expansion in web graphs},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {181--190},
     year = {2009},
     volume = {50},
     number = {2},
     mrnumber = {2537830},
     zbl = {1212.05248},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2009_50_2_a1/}
}