https://mountainresearchinitiative.org/mri-newsletter-september-2020?e=91d14b3b56

https://mountainresearchinitiative.org/news-page-all/112-global-news/2653-nature-humanity-at-a-crossroads-un-warns

https://rockymtnbonsai.com/index.php/2020/10/02/colorado-bonsai-the-right-way-and-wrong-way-to-make-major-cuts-on-young-maples/

http://belanmaros.blogspot.com/2020/05/carpinus-betulus-gemini-with-fresh.html?m=1

http://belanmaros.blogspot.com/2020/08/acer-palmatum.html?m=1

http://belanmaros.blogspot.com/2020/10/tilia-cordata-daria.html?m=1

https://nebaribonsai.wordpress.com/2020/09/26/styling-a-corkbark-black-pine-taihei-part-3/

https://nebaribonsai.wordpress.com/2020/10/03/fall-work-on-an-arakawa-japanese-black-pine/

http://walter-pall-bonsai.blogspot.com/2020/10/mugo-pine-64.html?m=1

http://walter-pall-bonsai.blogspot.com/2020/10/bonsaigarten-munchen.html?m=1