Ilaria Bordino Debora Donato Aristides Gionis Stefano Leonardi Mining Large Networks with Subgraph Counting. 737-742 2008 ICDM http://dx.doi.org/10.1109/ICDM.2008.109 conf/icdm/2008 db/conf/icdm/icdm2008.html#BordinoDGL08