1. "1 P. Vitruvius and M. H. Morgan, "Vitruvius: The Ten Books on Architecture", Dover Publications, 1960
2. 2 K. Lißner and W. Rug, in "Holzbausanierung beim Bauen im Bestand', edited by K. Lißner and W. Rug, Springer, 2018, pp. 5-21, https://doi.org/10.1007/978-3-662-50377-5_2
3. 3 W. N. Blair, "The Building Materials of Otago and South New Zealand Generally", J. Wilkie & Co, 1879
4. 4 T. Kirk, "The Forest Flora of New Zealand" Government Printer, 1889
5. 5 T. C. Scheffer and J. J. Morrell, "Natural Durability of Wood: a Worldwide Checklist of Species", Forestry Publications Office, Oregon State University, 1998, https://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/7736/RC22.pdf