P. Hiepko

International Code of Botanical Nomenclature

John McNeill, Dan H. Nicolson, J. McNeill, 1983 .

Eipo plant nomenclature and classification compared with other folk taxonomic systems

P. Hiepko, 2006 .

A new name and a new combination in the neotropical genus Agonandra (Opiliaceae)

P. Hiepko, 1997 .

Herbarium Willdenow Alphbetical Index

P. Hiepko, 1972 .

Humboldt, his botanical mentor Willdenow, and the fate of the collections of Humboldt & Bonpland

P. Hiepko, 2006 .

International Code of Botanical Nomenclature

W. G. Chaloner, H. M. Burdet, D. Nicolson, 1983 .