@ARTICLE{
       Author = {Krioukov, D. and Papadopoulos, F. and Kitsak, M. and Vahdat, A. and Boguñá, M.}, 
       Title = {{Hyperbolic Geometry of Complex Networks}},
       Journal = {Physical Review E}, 
       Volume = {82},
       Number = {036106},
       Month = {Oct},
       Year = {2010},
       Keywords = {routing   topology   network geometry}
}