"Pinus longaeva". Gymnosperm Database. March 15, 2007. Archived from the original on May 17, 2019. Retrieved 2015-01-04.
doi.org
Hughes, Malcolm K.; Funkhouser, Gary (1998). "Extremes of moisture availability reconstructed from tree rings for recent millennia in the great basin of western north America". The Impacts of Climate Variability on Forests. Lecture Notes in Earth Sciences. Vol. 74. pp. 99–107. doi:10.1007/BFb0009768. ISBN3-540-64681-7.