@incollection{131903,
  address          = {Hamburg},
  author           = {Boyeldieu, Pascal},
  booktitle        = {Topics in Nilo-Saharan linguistics},
  editor           = {Bender, M. L.},
  pages            = {249-270},
  publisher        = {Helmut Buske Verlag},
  series           = {Nilo-Saharan: linguistic analyses and documentation (NISA)},
  title            = {Comparative tonal systems: Yulu/Kara vs Sara group (Kenga/Ngambay/Mbay)},
  volume           = {3},
  year             = {1989},
  hhtype           = {comparative (computerized assignment from "group")},
  keywords         = {;waf;caf;nea;chd;sdn;car;lng;phn;tnl;v.423;v.424;v.412;v.416;v.415;},
  lgcode           = {Kenga [kyq], Kara (Central African Republic) [kah], Mbay [myb], Yulu [yul], Ngambay [sba] (autotranslated from Maho's coding system)},
  macro_area       = {Africa},
  src              = {eballiso2009, weball},
  subject_headings = {naf, waf, caf, nea, chd, sdn, car, lng, phn, tnl, v.423, v.424, v.412, v.416, v.415}
}