Links:
- Wood Properties
https://www.fpl.fs.fed.us/documnts/pdf1994/winan94a.pdf - Wood species guide
https://www.esf.edu/wus/documents/WoodSpeciesGuide.pdf - Lecture notes
https://openlab.citytech.cuny.edu/bt2-2020f/files/2019/03/18-WoodPDF.pdf - Introductory lecture notes
https://openlab.citytech.cuny.edu/arch1130/files/2014/08/07_Building-Tech-I_wood.pdf