Menon, M., J. C.  Bagley, C. J.  Friedline, A. V.  Whipple, A. W.  Schoettle, A.  Leal-Saenz, C.  Wehenkel, F.  Molina-Freaner, L.  Flores-Renterıa, S.  M. Gonzalez-Elizondo, R. A.  Sniezko, S. A.  Cushman, K. M.  Waring, and A. J.  Eckert. 2018. 
The role of hybridization during ecological divergence of southwestern white pine (Pinus strobiformis) and limber pine (P. flexilis). Molecular Ecology 27:1245-1260.