@article{ZachKirschtLoehretal.2006,
  author    = {Barbara Zach and Holger Kirscht and Doris L{\"o}hr and Katharina Neumann and Editha Platte},
  title     = {Masakwa dry season cropping in the Chad Basin},
  journal   = {Berichte des Sonderforschungsbereichs 268},
  volume    = {8},
  pages     = {349 -- 353},
  year      = {2006},
}