Bogler, DJ, Francisco-Ortega, J. Molecular systematic studies in cycads:: Evidence from
trnL intron and ITS2 rDNA sequences
.
BOTANICAL REVIEW, 70(2), 260-273. 10.1663/0006-8101(2004)070[0260:MSSICE]2.0.CO;2
Bogler, DJ, Francisco-Ortega, J. Molecular systematic studies in cycads:: Evidence from trnL intron and ITS2 rDNA sequences
. BOTANICAL REVIEW, 70(2), 260-273. 10.1663/0006-8101(2004)070[0260:MSSICE]2.0.CO;2