Friis, Ib,
1989,
Intern. Ass. of Botanical Gardens - Proceedings of the Tenth General Meeting and Conference. 2-7 August.1987. Larsen, K., Morley, B. & Schoser, G. (red.).
Palmengarten,
s. 86 - 103 Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning