Wubet, T, M Weiss, I Kottke, D Teketay, and F Oberwinkler, Phylogenetic analysis of nuclear small subunit rDNA sequences suggests that the endangered African Pencil Cedar, Juniperus procera, is associated with distinct members of Glomeraceae. Mycological Research 110:1059-1069. (2006). doi:10.1016/j.mycres.2006.04.005