@techreport{EURECOM+3929, 
year = {2013}, 
title = {{T}he role of phone numbers in understanding cyber-crime}, 
author = {{C}ostin, {A}ndrei and {I}sacenkova, {J}elena and {B}alduzzi, {M}arco and {F}rancillon, {A}ur{\'e}lien and {B}alzarotti, {D}avide}, 
number = {EURECOM+3929}, 
month = {02}, 
institution = {Eurecom}, 
url = {http://www.eurecom.fr/publication/3929},, 
}