Martínez-Freiría, F., Freitas, I., Mebert, K., Zinenko, O., Schweiger, S., Wüster, W., Brito, J., Crnobrnja-Isailović, J., Alpern, B., Fahd, S., Santos, X., Pleguezuelos, J., Joger, U., Orlov, N., Mizsei, E., Lourdais, O., Zuffi, M., Strugariu, A., Zamfirescu, Ş., Martínez-Solano, Í., Velo-Antón, G., Kaliontzopoulou, A., Ursenbacher, S.: Towards evidence-based species delimitation in Eurasian vipers. In: XX. European Congress of Herpetology : Programme & Abstracts, University of Milan, Milano, 102-103, 2019. ISBN: 9791220052849