In situ, pollen and spores in plant evolution. 14D -Exine origin, development and structure in Pteridophytes, Gymnosperms and angiosperms. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.)
Reference:
Rowley,J.R. (1996)
In situ, pollen and spores in plant evolution. 14D -Exine origin, development and structure in Pteridophytes, Gymnosperms and angiosperms. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) American Association of Stratigraphic Palynologists:Principles and Applications. Applications (J.Jansonius and D.C.McGregor,Editors)
Vol. 1 P. 443- 462