Reference:Sarvela1978a
Verbatim text: Sarvela, J. 1978. A synopsis of the fern genus Gymnocarpium. Ann. Bot. Fenn. 15: 101--106.
Author: Sarvela, J.
Year: 1978
Title: A synopsis of the fern genus Gymnocarpium
Journal: Ann. Bot. Fenn
Volume: 15
Pages: 101–106