@article{Pupulin2007,
  author    = {Franco Pupulin},
  title     = {Contributions to a reassessment of Costa Rican Zygopetalinae (Orchidaceae) : 3. A systematic revision of Dichaea in Costa Rica},
  journal   = {Harvard papers in botany},
  volume    = {12},
  number    = {1},
  pages     = {15 -- 153},
  year      = {2007},
}