Li, H.-M., Yuan, Q. and Yang, Q.-E. 2019.

Taxonomic studies on the genus Delphinium (Ranunculaceae) from China (XX): Reduction of D. ellipticovatum and D. tianshanicum to the synonymy of D. winklerianum

. Phytotaxa. 405, 1 (May 2019), 37–53. DOI:https://doi.org/10.11646/phytotaxa.405.1.4.