Czapka, Sophia, Nathalie Topaj & Natalia Gagarina. 2023. Literacy instruction and lexicon size determine bilingual reading development of Russian-German children. International Journal of Bilingualism, pp. 1-19.
Czapka, Sophia, John W.Schwieter & Julia Festman. 2022. The influence of peripheral emotions on inhibitory control among children. Acta Psychologica 223, Article 103507, pp. 1-10.
Czapka, Sophia & Julia Festman. 2021. Wisconsin Card Sorting Test reveals a monitoring advantage but not a switching advantage in multilingual children. Journal of Experimental Child Psychology.
Gagarina, Natalia, Sophia Czapka, Nathalie Topaj & Manfred Krifka. 2021. Erwerbsprofile des Deutschen im mehrsprachigen Kontext. In Lobin, Henning, Andreas Witt & Angelika Wöllstein (eds.). Deutsch in Europa. Jahrbuch des Instituts für Deutsche Sprache 2020, 75-92. Berlin: De Gruyter.
Czapka, Sophia, Nathalie Topaj & Natalia Gagarina. 2021. A four-year longitudinal comparative study on the lexicon development in Russian and Turkish heritage speakers in Germany. Languages 6 (1).
Czapka, Sophia, Christiane Wotschak, Annegret Klassert & Julia Festman. 2019. A path to the bilingual advantage: pairwise matching of individuals. Bilingualism: Language and Cognition, 1-11.
Czapka, Sophia, Annegret Klassert & Julia Festman. 2019. Executive Functions and Language: Their Differential Influence on Mono- vs. Multilingual Spelling in Primary School. Frontiers in Psychology, Article 97.
Gagarina, Natalia, Nathalie Topaj, Dorothea Posse & Sophia Czapka. 2018. Der Erwerb des Deutschen bei türkisch- und russisch-deutsch bilingualen Kindern: Gibt es doch einen Einfluss von Sprachfördermaßnahmen?. Diskurs Kindheits- und Jugendforschung 2-2018, 191-210.
Czapka, Sophia & Annegret Klassert. 2015. Fehleranalyse Schreiben (FeSCH): Bi-und monolinguale Kinder im Vergleich. Spektrum Patholinguistik 8, 201-208.
Meinzer, Marcus, Sophia Jähnigen, David A. Copland, Robert Darkow, Ulrike Grittner, … & Agnes Flöel. 2013. Transcranial direct current stimulation over multiple days improves learning and maintenance of a novel vocabulary. Cortex 50, 137-147.