@book{OPUS4-22238,
  title     = {Guia do leitor da l{\´i}ngua Cisena},
  edition   = {Primeira edi{\c{c}}{\~a}o electr{\´o}ni},
  url       = {http://lidemo.net/2010/docs/seh_p000335.pdf},
  year      = {2010},
}