K. M.  Pryer, Schuettpelz, E., Wolf, P. G., Schneider, H., Smith, A. R., and Cranfill, R., ?Phylogeny and Evolution of Ferns (Monilophytes) with a Focus on the Early Leptosporangiate Divergences?, American Journal of Botany, vol. 91, no. 10, pp. 1582-1598, 2004.

K. M.  Pryer, Schuettpelz, E., Wolf, P. G., Schneider, H., Smith, A. R., and Cranfill, R., ?Phylogeny and Evolution of Ferns on the Early Leptosporangiate Divergences?, American Journal of Biology, vol. 91, no. 10, pp. 1528-1598, 2004.

K. M.  Pryer, ?Phylogeny and Evolution of Ferns (Monilophytes) with a focus on the early Leptosporangiate Divergences.?, American Journal of Botany, vol. 91, no. 10, 2004.

?Phylogeny an evolution of ferns (Monilophytes) with a focus on the early leptosporangiate divergences?, American journal of botany, vol. 91, no. 10, pp. 1582-1598, 2004.

K. M.  Pryer, Schuettpelz, E., Wolf, P. G., Schneider, H., Smith, A. R., and Cranfill, R., ?PHYLOGENY AND EVOLUTION OF FERNS (MONILOPHYTES) WITH A FOCUS ON THE EARLY LEPTOSPORANGIATE DIVERGENCES1?, American Journal of Botany, vol. 10, no. 91, pp. 1582?1598, 2004.