@misc{lei-03-raabimg,
  author = {Helena Cristina da Gama Leit{\~a}o},
  title = {Test images for the {RAAB} Project},
  url = {http://www.ic.uff.br/~raab/figuras.html},
  howpublished = {Electronic document, last accessed on ??/??/????},
  year = 2003,
  altkeys = {lei-NN-raabimg,site-imagem}
}