↑Spitzenberger, F., Strelkov, PP, Winkler, H. & Haring, E. 2006. A preliminary revision of the genus Plecotus (Chiroptera, Vespertilionidae) based on genetic and morphological results. Zoologica Scripta 35: 187-230.
↑OSpitzenberger F, Strelkov PP, Winkler H & Haring E, A preliminary revision of the genus Plecotus (Chiroptera, Vespertilionidae) based on genetic and morphological results ( PDF ), in Zoologica Scripta , vol. 35, nº 3, 2006, pp. 187-230.