V. - L.  Sork, Davis, F. - W., Smouse, P. - E., Apsit, V. - J., Dyer, R. - J., Fernandez-M, J. - F., and Kuhn, B., ?Pollen movement in declining populations of California Valley oak, Quercus lobata: Where have all the fathers gone??, Molecular Ecology, vol. 11, pp. 1657-1668, 2002.