Interference microscopical investigation of the leaf surface of some ferns (Filicales)
by Linskens H. F., Schoof-Van Pelt M. (1975)
University Nijmegen, The Netherlands.
in In “Form, Structure, and Function in Plants” –
Mohan Ram, H. Y., Shah J. J., Shah C. K. (eds.) – Sarita Prakashan, Meerut, India