Zaika, M. A., Kilian, N., Jones, K., Krinitsina, A. A., Nilova, M. V., Speranskaya, A. S., & Sukhorukov, A. P. (2020). Scorzonera sensu lato (Asteraceae, Cichorieae) – taxonomic reassessment in the light of new molecular phylogenetic and carpological analyses. PhytoKeys.

Zaika, Maxim A., Norbert Kilian, Katy Jones, Anastasiya A. Krinitsina, Maya V. Nilova, Anna S. Speranskaya, a Alexander P. Sukhorukov. "Scorzonera Sensu Lato (Asteraceae, Cichorieae) – Taxonomic Reassessment in the Light of New Molecular Phylogenetic and Carpological Analyses." PhytoKeys 2020.

Zaika, Maxim A., et al. "Scorzonera Sensu Lato (Asteraceae, Cichorieae) – Taxonomic Reassessment in the Light of New Molecular Phylogenetic and Carpological Analyses." PhytoKeys 2020.