@article{GradsteinSalazarAllen1992,
  author    = {Stephan Robbert Gradstein and Noris Salazar Allen},
  title     = {Bryophyte diversity along an altitudinal gradient in Dari{\´e}n National Park, Panama},
  journal   = {Tropical bryology},
  number    = {5},
  pages     = {61 -- 71},
  year      = {1992},
}