Journal Article
Pentzold, S.; Tritsch, C.; Martens, J.; Tietze, D. T.; Giacalone, G.; Valvo, M. L.; Nazarenko, A. A.; Kvist, L.; Päckert, M.: Where is the line? Phylogeography and secondary contact of western Palearctic coal tits (Periparus ater: Aves, Passeriformes, Paridae). Zoologischer Anzeiger
252 (3), pp. 367 - 382 (2013)