@article{WiggintonO’SheaPorleyetal.2001,
  author    = {Martin J. Wigginton and Brian J. O'Shea and Ron D. Porley and H. W. Matcham},
  title     = {Bryophytes of Uganda : 4., new and additional records, 2},
  journal   = {Tropical bryology},
  number    = {20},
  pages     = {55 -- 62},
  year      = {2001},
}