References
- Au KN. 2017. A new technology warns of tree stress. Arborist News. 26(2):26–29. http://geocarto.com.hk/readings/april2017_issue/.
- Au KN. 2018. An integrated approach to tree stress monitoring. Arborist News. 27(4):28–31. http://geocarto.com.hk/readings/aug2018_issue/.
- Au KN. 2020. A new technology enables early detection of tree stress of an individual tree or a large number of trees. Arborist News. 29(5):40–45. http://geocarto.com.hk/pdf/pdf_files/Au_October_2020_AN.pdf.
- Geocarto Internatioanal Centre Limited and DigitalGlobe. 2017. “Detecting stressed trees with multispectral imagery after atmospheric compensation”, DigitalGlobe. http:/geocarto.com.hk/readings/white_paper.
- Webber MA, Au KN. 2020. Spectral reflectance and tree risk analysis and management. The Buckeye Arborist. 51(2):20–26. http://geocarto.com.hk/pdf/pdf_files/TheBuckeyeArborist.pdf.