1. Bamber R.K., Heartwood, its function and formation, Wood Sci. Technol. 10 (1976) 1–8.
2. Bamber R.K., The wood anatomy of eucalypts and papermaking, Appita J. 38 (1985) 210–216.
3. Bamber R.K., Fukazawa K., Sapwood and heartwood: a review, For. Abst. 46 (1985) 567–580.
4. Carrodus B.B., Variability in the proportion of heartwood formed in woody stems, New Phytol. 71 (1972) 713–718.
5. Clarke C.R.E., Garbutt D.C.F., Pearce J., Growth and wood properties of provenances and trees of nine eucalypt species, Appita J. 50 (1997) 121–130.