1. Adler A, Verwijst T, Aronsson P (2005) Estimation and relevance of bark proportion in a willow stand. Biomass Bioenergy 29:102–113
2. Arihan O, Güvenç A (2011) Studies on the anatomical structure of stems of willow (Salix L.) species (Salicacea) growing in Ankara Province, Turkey. Turk J Bot 35:1–17
3. Behnke K, Grote R, Brüggermann N, Zimmer I, Zhou G, Elobeid M, Janz D, Polle A, Schnitzler J-P (2011) Isoprene emission-free poplars – a chance to reduce the impact from polar plantations on the atmosphere. New Phytol 194:70–82
4. Boeckler GA, Gershenzon J, Unsicker SB (2011) Phenolic glycosides of the Salicacea and their role as anti-herbivore defences. Phytochemistry 72:1497–1509
5. Brereton NJ, Pitre FE, Hanley SJ, Ray M, Karp A, Murphy RJ (2010) Mapping of enzymatic saccharification in short rotation coppice willow and its independence from biomass yield. Bioenergy Res 3:251–261