Hartmann, F. (2023). Germanic phylogeny. Oxford: Oxford University Press.
Hartmann, F. (2020). The Vandalic Language - Origins and Relationships. Heidelberg: Winter.
Bäumler, L., Hartmann, F., Elissa, P., Van den Berghe, C. Q., Weiland, V. (2023). Sociogeographical differences in the pronunciation of Anglicisms in Spanish Acoustic vowel analysis using multilevel regression models. Corpus dialectology. 106 – 132. Amsterdam: John Benjamins.
Hartmann, F. (2020). Review of Edgar Büttner (Hrg.) (2017). Unser vrouwen klage / Der Spiegel. (Altdeutsche Textbibliothek 124), Berlin/Boston: De Gruyter.
Hartmann, F. (2020). Review of Rudolf Schützeichel (2012). Althochdeutsches Wörterbuch. 7., durchgesehene und verbesserte Auflage, Berlin/Boston: De Gruyter.
Hartmann, F. (2019). Predicting historical phonetic features using deep neural networks: A case study of the phonetic system of Proto-Indo-European.
Hartmann, F., Jäger, G. (2023). Gaussian process models for geographic controls in phylogenetic trees.
Hartmann, F. (2022). Lexical and sublexical effects on diachronic stability and instability of phonological systems. Lingua. (273), 103308.
Hartmann, F. (2022). Methodological problems in quantitative research on environmental effects in phonology.
Pustka, E., Heiszenberger, E., Hartmann, F. (2022). Pronunciation in progress: A longitudinal study on the development of obligatory liaison in French as a foreign language.
Hartmann, F., Riegger, C. (2022). The Burgundian language and its phylogeny – A cladistical investigation.
Luo, J., Hartmann, F., Santus, E., Barzilay, R., Cao, Y. (2021). Deciphering Undersegmented Ancient Scripts Using Phonetic Prior.
Hartmann, F. (2021). Old Frisian breaking and labial mutation revisited.
Hartmann, F. (2021). The phonetic value of the Proto-Indo-European laryngeals - A computational study using deep neural networks.
Hartmann, F. (2017). Gotisch-Lernmodul.