Gültepe, M., Makbul, S., Okur, S., & Coşkunçelebi̇ K. (2018).

Contribution to the pollen morphology of Tragopogon (Asteraceae) in Turkey

. Phytotaxa, 361(2), 168–182. https://doi.org/10.11646/phytotaxa.361.2.3