MAGENDANS, J.F.C. - VAN VEENENDAAL, W.L.H. Morphology of pits in hardwood fibres : nomenclature of axial fylary elements : bordered pits and funnel pits. Wageningen : Wageningen Agricultural University, 1999. 100 s. Wageningen agricultural university papers, 99-2(1999). ISBN 90-5782-036-6. ISSN 0169-345X.