Verbatim text: Reichstein, T. 1981. Hybrids in European Aspleniaceae (Pteridophyta). Bot. Helv. 91: 89--139.
Author: Reichstein, T.
Year: 1981
Title: Hybrids in European Aspleniaceae (Pteridophyta)
Journal: Bot. Helv
Volume: 91
Pages: 89–139