Sugai Kenta

Grammaticalization of the Verb imam 'have' in Bulgarian: The ima da construction 

Studies in Linguistic Sciences, (1) 94-106, Mar, 2024  Peer-reviewedLead author

How and what should be included in a Bulgarian textbook for Japanese speakers? An examination in the light of differences between written and spoken language 

Българистиката по света. Филологията у дома. Сборник с доклади от международната научна конференция. 12-14 октомври 2023 г., 16-23, Dec, 2023  InvitedLead author

The Future Tense Construction of 'Have' in the Bulgarian Dialect of Băleni-Sârbi Revisited. Grammaticalization and Language Contact 

Contributions to the 24th Annual Scientific Conference of the Association of Slavists (Polyslav), 360-369, Aug, 2023  Peer-reviewedLead author

On the Language Situation of Taraclia (Moldova) Through the Prism of Linguistic Landscape 

Алманах "Българска украинистика", (10) 114-127, Dec, 2021  Lead author

Contemporary Language Situation in Parcani, Moldova 

Contributions to the 23rd Annual Scientific Conference of the Association of Slavists (Polyslav), 343-352, Nov, 2021  Peer-reviewedLead author

Language Shift in Brăneşti (Romania) 

Збiрник наукових статей "Мова. Свiдомiсть. Концепт", Випуск 11 59-64, Apr, 2021  

Language Change in the Bulgarian Dialect of Brăneşti, Romania 

Bulletin of the Faculty of Humanities and Human Sciences, Hokkaido University, (163) 45-76, Mar, 2021  

Comparative Analysis of the Grammatical Terminology Used in Learning Materials for the Bulgarian Language for Japanese Native Speakers 

Japan and the European Southeast: Over a Hundred Years of Political, Economic, Cultural and Academic Interactions (Papers from the international conference, organized by the Japanese Studies Department of Sofia University "St. Kliment Ohridski", 21-23 November 2019), 233-246, 2021  

Past passive participles of intransitive verbs in the language of the Bulgarian minority in Romania: A closer look at contact-induced grammatical change. Našite bălgari să dojdeni or dušleli 

Zeszyty Łużyckie, 54 51-66, Dec, 2020  Peer-reviewed

On Some Syntactic Features in the Bulgarian Dialect of Parcani, Moldova 

Contributions to the 22nd Annual Scientific Conference of the Association of Slavists (Polyslav), (22) 277-284, Mar, 2020  Peer-reviewed

On Contact-induced Grammaticalization of the Clitic Doubling Construction: A Case of the Bulgarian Northeastern Dialect in Romania 

Contributions to the 21st Annual Scientific Conference of the Association of Slavists (Polyslav), 272-281, Aug, 2018  Peer-reviewed

Структура удвоения дополнения по модели левой дислокации в болгарском переселенческом диалекте в Румынии 

Slavic almanac 2016, Вып.3-4 344-354, 2016  Peer-reviewed