Vale, Ashleigh, Ehren Moler, and Andrew Nelson. “Two Studies of the Potential of Drought Preconditioning to Enhance Deep Root Production in Seedlings of Western Larch (Larix Occidentalis)”. REFORESTA, no. 12 (December 30, 2021): 3-12. Accessed August 13, 2022. https://journal.reforestationchallenges.org/index.php/REFOR/article/view/140.