* 'A Gap in Nature' by Tim Flannery and Peter Schouten (2001), published by William Heinemann*Martinkova, N., J. Zima, M. Jaarola, M. Macholan and F. Spitzenberger,F.
* Martinkova N., Zima J., Jaarola M., Macholan M., Spitzenberger F. The origin and phylogenetic relationships of "Microtus bavaricus" based on karyotype and mitochondrial DNA sequences // Folia Zool.