@article{Heinrich2006,
  author    = {J{\"u}rgen Heinrich},
  title     = {Geoecological arguments for field terracing in parts of the southern Gongola Basin, Tangale-Waja region, NE-Nigeria},
  journal   = {Berichte des Sonderforschungsbereichs 268},
  volume    = {8},
  pages     = {101 -- 106},
  year      = {2006},
}