@article{GumulaHeydenreichDereseetal.2012,
  author    = {Ivan Gumula and Matthias Heydenreich and Solomon Derese and Isaiah O. Ndiege and Abiy Yenesew},
  title     = {Four isoflavanones from the stem bark of Platycelphium voense},
  journal   = {Phytochemistry letters},
  volume    = {5},
  number    = {1},
  pages     = {150 -- 154},
  doi       = {10.1016/j.phytol.2011.11.012},
  year      = {2012},
}