• Multilingualism in a medium-sized town - the example of Delmenhorst (teaching/learning project)
• Hybridisation from two sides: Ukrainian-Russian and Russian-Ukrainian code mixing in the context of the (socio)linguistic situation in southern Ukraine along the Black Sea coast. German Research Foundation and Fund for Scientific Research, Austria (DFG-FWF D-A-CH), G. Hentschel, T. Reuther (Klagenfurt, Austria)
• Identity constructions of young adults in a post-socialist transition society: the case of Belarus (Helene-Lange-Kolleg for young female researchers, coordination: Gun-Britt Kohler)
• Variability and stability in the mixed substandard: Suržyk
• Trasjanka in Belarus - a "mixed variety" as a product of Belarusian-Russian language contact
  

Monographs

• Brüggemann, M. 2014: The Belarusian and Russian languages in their relationship to Belarusian society and nation: Ideological-programmatic positions of political actors and intellectuals 1994-2010 (= Studia Slavica Oldenburgensia 23). Oldenburg
• Grecko, D. 2025: Languages and the construction of collective identity among young adults in Belarus. (= Studia Slavica Oldenburgensia 32). Oldenburg.
• Kittel, B.; Lindner, D.; Brüggemann, M.; Zeller, J. P.; Hentschel, G. 2018: Language contact - language mixing - language choice - language change. A linguistic sociological study of the Belarusian-Russian mixed speech "Trasjanka" in Belarus. Berlin etc.: Peter Lang

Essays

• Zeller, J. P.; Hentschel, G. 2024: The Ukrainian Black Sea coast. Languages - Nationalities - Identities. In: Wiemer, B.; Goldt, R. (eds.): Ukraine as an object of Russian great power claims. Languages, identities and discourses. Berlin: Frank & Timme, 21-63.
• Zeller, J. P. 2022: Attitudes on languages, identities and politics at the Ukrainian Black Sea coast in 2020/21. In: Russian Linguistics 46, 291-311 [https://doi.org/10.1007/s11185-022-09264-7 ]
• Zeller, J. P. 2021: The geographical and social distribution of native languages in central Ukraine. In: Linguistica Copernicana 18, 105-136 [https://doi.org/10.12775/LinCop.2021.006 ]
• Zeller, J. P. 2021: Linguistic, political, and cultural attitudes and identities in Central Ukraine in 2014. In: Müller, D.; Wingender, M. (eds.): Language politics, language situations and conflicts in multilingual societies. Case studies from contemporary Russia, Ukraine and Belarus. Wiesbaden, 247-263
• Zeller, J. P.; Sitchinava, D. 2020: The Russian language in Belarus and Ukraine. In: Mustajoki, A.; Protassova, E.; Yelenevskaya, M. (eds.): The soft power of the Russian language. Pluricentricity, politics and policies. London; New York: Routledge, 108-122
• Hentschel, G.; Taranenko, O. O.; Zeller, J. P. 2019: Mova i cerkva v sučasnij Ukraïni. [Language and church in today's Ukraine]. In: Movoznavstvo 2019/6, 22-55 [https://doi.org/10.33190/0027-2833-309-2019-6-002 ]
• Zeller, J. P.; Taranenko, O.; Hentschel, G. 2019: Language and religion in Central Ukraine. In: International Journal of the Sociology of Language 260, 105-130 [https://doi.org/10.1515/ijsl-2019-2050 ]
• Hentschel, G.; Zeller, J. P. 2017a: Aspects of language use in central regions of Ukraine. In: Vienna Slavonic Almanac 79, 37-60
• Hentschel, G.; Zeller, J. P. 2017b: Movy i kody v central'nych regionach Ukrajiny: dumky ta atytjudy / Jazyki i kody v central'nych regionach Ukrainy: menija i attitjudy. In: Sociolohija 2017:1, 103-127 [Ukrainian / Russian version of Hentschel & Zeller 2016b] [http://stmm.in.ua/archive/ukr/2017-1/11.pdf; stmm.in.ua/archive/rus/2017-1/11.pdf]
• Hentschel, G.; Brüggemann, M.; Geiger, H.; Zeller, J. P. 2016: Jazykovaja i političeskaja orientacija soveršennoletnich belorusov. Meždu russkim i belorusskim - meždu vostokom i zapadom. In: Sociologija: 2016:2, 57-76 [Russian version of Hentschel et al. 2015] [https://elib.bsu.by/bitstream/123456789/169524/1/57-76.pdf]
• Hentschel, G.; Zeller, J. P. 2016a: Aspekty vykorystannja mov u central'nych regionach Ukrajiny. / Aspekty ispol'zovanija jazykov v central'nych regionach Ukrainy. In: Sociolohija 2016:4, 142-163 [Ukrainian / Russian version of Hentschel & Zeller 2017a] [http://stmm.in.ua/archive/ukr/2016-4/10.pdf; stmm.in.ua/archive/rus/2016-4/10.pdf]
• Hentschel, G.; Zeller, J. P. 2016b: Opinions and attitudes towards languages and codes in central regions of Ukraine. In: Journal of Slavic Studies 61:4, 636-661 [https://doi.org/10.1515/slaw-2016-0039 ]
• Zeller, J. P.; Levikin, D. 2016: The mother tongues of young Belarusians. Their symbolic content and their connection with social factors and language use in the family. In: Wiener Slavistisches Jahrbuch (Neue Folge) 4, 114-144 [https://doi.org/10.13173/wienslavjahr.4.2016.0114 ]
• Hentschel, G.; Brüggemann, M.; Geiger, H.; Zeller, J. P. 2015: The linguistic and political orientation of young Belarusian adults between East and West or Russian and Belarusian. In: International Journal of the Sociology of Language 2015/236, 133-154 [https://doi.org/10.1515/ijsl-2015-0024 ]

Ongoing:

• Margarita Herzog: Family language politics: a qualitative study of language and identity and role construction within Russian-speaking families in Germany.
• Yevheniia Lytvyshko: Language Biographies and Identity Construction: a study of Suržyk speakers through narrative and discourse.

Completed:

• Mark Brüggemann: Language ideological debates in Belarus' 1995-2008. An analysis of press texts
• Daria Grecko: Languages and the construction of collective identity among young adults in Belarus.