@article{SeawardAptroot2000,
  author    = {Mark R. D. Seaward and Andr{\´e} Aptroot},
  title     = {The lichen flora of the Chagos Archipelago : including a comparison with other island and coastal tropical floras},
  journal   = {Tropical bryology},
  number    = {18},
  pages     = {185 -- 198},
  year      = {2000},
}