@ARTICLE{
       Author = {Serrano, M. and Krioukov, D. and Boguñá, M.}, 
       Title = {{Self-similarity of complex networks and hidden metric spaces}},
       Journal = {Physical Review Letters}, 
       Volume = {100},
       Number = {078701},
       Institution = {Institute of Theoretical Physics, Cooperative Association for Internet Data Analysis (CAIDA), and Universitat de Barcelona},
       Month = {Feb},
       Year = {2008},
       Keywords = {routing   topology}
}