(January 1999) “Seed and seedling ecology of piñon and juniper species in the pygmy woodlands of western North America”, The Botanical Review65 (1), p. 1–38. doi:10.1007/bf02856556. 38377131.
(July 1982) “Juniper Berries as an Exclusive Winter Forage for Townsend's Solitaires”, American Midland Naturalist108 (1), p. 34. doi:10.2307/2425289.