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2023
Hartmann, Frederik. Germanic Phylogeny. Oxford: Oxford University Press.
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2020
Hartmann, Frederik. The Vandalic Language — Origins and Relationships. Heidelberg: Winter.
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accepted
Hartmann, Frederik. Mediated innovation: a new category in cladistics. Journal of Historical Linguistics.
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accepted
Hartmann, Frederik. Causality in Language Change. International Encyclopedia of Language and Linguistics, 3rd Edition.
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accepted
Abercrombie, Cortnie, Hartmann, Frederik. Causal AI: The Power of Why. In Larry Medsker (ed.), AI and Ethics Handbook, 2nd edition.
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accepted
Hartmann, Frederik, Johanna Nichols. The Euro-African Transition Zone: Findings from geospatial phonology. In Tom Güldemann, Jakob Lesage (eds.), Conference proceedings Workshop on the occasion of the 100th anniversary of the birth of Diedrich Westermann.
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2026
Hartmann, Frederik. A computational approach to investigating phonological complexity with latent variables and dimensionality reduction. Phonology, 43:2.
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2025
Hartmann, Frederik*, William Locke*, Elizabeth Brown. Computational detection of syllable boundaries in undeciphered languages using segment surprisal. Journal of Quantitative Linguistics.
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2025
Hartmann, Frederik, Johanna Nichols. Geospatial effects on phonological complexity in the world's languages. Linguistic Typology, 29:3.
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2024
Heiszenberger, Elisabeth, Eva Reinisch, Frederik Hartmann, Elizabeth Brown, and Elissa Pustka. Perceptually easy second language phones are not always easy: the role of orthography and phonology in schwa realization in second language French. Language and Speech, 68(2).
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2024
Hartmann, Frederik, George Walkden. The strength of the phylogenetic signal in syntactic data. Glossa, 9(1).
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2024
Hartmann, Frederik. An agent-based modelling approach to wave-like diversification of language families. Diachronica (online first).
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2024
Hartmann, Frederik, Sean Roberts, Paul Valdes, Rebecca Grollemund. Investigating environmental effects on phonology using diachronic models. Evolutionary Human Sciences.
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2023
Hartmann, Frederik and Gerhard Jäger. Gaussian process models for geographic controls in phylogenetic trees. Open Research Europe.
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2023
Bäumler, Linda and Frederik Hartmann. Sociogeographical differences in the pronunciation of Anglicisms in Spanish — acoustic vowel analysis using multilevel regression models. In Pustka E., Quijada van den Berghe C. & Weiland V. (eds.), Corpus Dialectology. Amsterdam: John Benjamins. 106–132.
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2022
Hartmann, Frederik. Methodological problems in quantitative research on environmental effects in phonology. Journal of Language Evolution, 7(1), 95–119.
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2022
Hartmann, Frederik. Lexical and sublexical effects on diachronic stability and instability of phonological systems. A case study on Proto-Indo-European dorsal stops. Lingua, 273, 103308.
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2022
Pustka, Elissa, Elisabeth Heiszenberger, and Frederik Hartmann. Pronunciation in progress: a longitudinal study on the development of obligatory liaison in French as a foreign language. Radical: A Journal of Phonology, 3, 45–88.
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2022
Hartmann, Frederik and Chiara Riegger. The Burgundian language and its phylogeny — a cladistical investigation. North-Western European Language Evolution (NOWELE), 75(1), 42–80.
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2021
Hartmann, Frederik. The phonetic value of the Proto-Indo-European laryngeals — a computational study using deep neural networks. Indo-European Linguistics, 9(1), 26–84.
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2021
Hartmann, Frederik. Old Frisian breaking and labial mutation revisited. Amsterdamer Beiträge zur älteren Germanistik, 80(4), 462–475.
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2021
Luo, Jiaming, Frederik Hartmann, Regina Barzilay, and Yuan Cao. Deciphering Undersegmented Ancient Scripts Using Phonetic Prior. Transactions of the Association for Computational Linguistics, 9, 69–81.
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2019
Hartmann, Frederik. Predicting Historical Phonetic Features using Deep Neural Networks: A Case Study of the Phonetic System of Proto-Indo-European. In Proceedings of the 1st International Workshop on Computational Approaches to Historical Language Change (pp. 98–108). Florence, Italy: Association for Computational Linguistics.
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2020
Hartmann, Frederik. Review of Rudolf Schützeichel, Althochdeutsches Wörterbuch. 7., durchgesehene und verbesserte Auflage, Berlin/Boston 2012. Zeitschrift für deutsches Altertum und deutsche Literatur (ZfdA).
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Hartmann, Frederik. Review of Edgar Büttner (ed.), Unser vrouwen klage / Der Spiegel. (Altdeutsche Textbibliothek 124), Berlin/Boston 2017. Zeitschrift für deutsches Altertum und deutsche Literatur (ZfdA).
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2017
Hartmann, Frederik. Gotisch-Lernmodul. dx.doi.org/10.15496/publikation-15544. Tübingen.