@article{1084775,
 author = {Daniel Gomes and M\&\#225;rio J. Silva},
 title = {Characterizing a national community web},
 journal = {ACM Trans. Inter. Tech.},
 volume = {5},
 number = {3},
 year = {2005},
 issn = {1533-5399},
 pages = {508--531},
 doi = {http://doi.acm.org/10.1145/1084772.1084775},
 publisher = {ACM Press},
 address = {New York, NY, USA},
 }