@article{50167,
  author     = {Zoll, Cheryl},
  journal    = {Linguistic inquiry},
  number     = {2},
  pages      = {225-268},
  title      = {Optimal tone mapping},
  volume     = {34},
  year       = {2000},
  jfmnote    = {Looks at data from Hausa, Kanakuru, and Tanzanian Maasai.},
  keywords   = {;waf;eaf;lng;phn;tnl;x.511a;x.513i;v.131a;},
  lgcode     = {Masai [mas], Hausa [hau], Dera (Nigeria) [kna] (autotranslated from Maho's coding system)},
  macro_area = {Africa},
  src        = {eballiso2009}
}