Jacobson, P.J. (2)
Jacobson, M.K.; Jacobson, P.J.; Jr. Miller, O.K
The mycorrhizal status of Welwitschia Mirabilis
Abrams, M.M.; Jacobson, P.J.; Jacobson, K.M.; Seely, M.K.
Survey of soil chemical properties across a landscape in the Namib Desert