Pokrant F. Integrative taxonomy provides evidence for the species status of the Ibero-Maghrebian grass snake Natrix astreptophora : [англ.] / F. Pokrant, C. Kindler, M. Ivanov, M. Cheylan, Ph. Geniez, W. Böhme, U. Fritz // Biological Journal of the Linnean Society. — 2016. — Vol. 118, no. 4. — P. 873—888. — doi:10.1111/bij.12782.
Kindler C. Mitochondrial phylogeography, contact zones and taxonomy of grass snakes (Natrix natrix,N. megalocephala) : [англ.] / C. Kindler, W. Böhme, C. Corti, V. Gvoždík, D. Jablonski, D. Jandzik, M. Metallinou, P. Široký, U. Fritz // Zoologica Scripta. — 2013. — Vol. 42, no. 5. — P. 458—472. — doi:10.1111/zsc.12018.
Schöneberg Y. Genomics reveals broad hybridization in deeply divergent Palearctic grass and water snakes (Natrix spp.) : [англ.] / Y. Schöneberg, S. Winter, O. Arribas, M. R. Di Nicola, M. Master, L. B. Owens, M. Rovatsos, W. Wüster, A. Janke, U. Fritz // Molecular Phylogenetics and Evolution. — 2023. — Vol. 184. — P. 107787. — doi:10.1016/j.ympev.2023.107787.