@article{68430,
  author     = {Almeida, António de},
  journal    = {Bol. cultural da Guiné Portugesa},
  title      = {Sobre a mathemática dos indígenos da Guiné Portuguesa},
  volume     = {6},
  year       = {1947},
  inlg       = {Portuguese [por]},
  keywords   = {;waf;gnb;ant;lng;lxl;u.711;u.811;},
  lgcode     = {Mandinka [mnk], Pulaar [fuc] (autotranslated from Maho's coding system)},
  macro_area = {Africa},
  src        = {eballiso2009}
}