Verbatim text: Kramer, K. U. and R. Viane. 1990. Aspleniaceae. In: K. Kubitzki et al., eds. 1990+. The Families and Genera of Vascular Plants. 1+ vol. Berlin etc. Vol. 1, pp. 52--56.
Author: Kramer, K.U., Viane, R.
Year: 1990
Title: Aspleniaceae
Editor: Kubitzki, K.
Book year: 1990
Book title: The Families and Genera of Vascular Plants
Volume: 1
Pages: 52–56