[Dejkova, Christina. Etimologija i lingvističeskaja kontaktologija: (Rumynskije glagol'nyje zaimstvovanija v odnom bolgarskom govore)]

Adamou, Evangelia. 2012. Verb morphologies in contact: evidence from the Balkan area. In: Vanhove, Martine – Stolz, Thomas – Urdze, Aina – Otsuka, Hitomi, eds. Morphologies in contact. Berlin: Akademie Verlag, s. 143–162. Studia Typologica, Vol. 10.

Adamou, Evangelia. 2016. A Corpus-Driven Approach to Language Contact: Endangered Languages in a Comparative Perspective. Boston – Berlin: De Gruyter Mouton. Language Contact and Bilingualism, Vol. 12.

BER: Bălgarski etimologičen rečnik. 1–8–. Sofija: Izdatelstvo na Bălgarskata akademija na naukite / Akademično izdatelstvo "prof. Marin Drinov" 1971–2017–.

Coetsem, Frans van. 1988. Loan Phonology and the Two Transfer Types in Language Contact. Dordrecht – Providence, R. I.: Foris Publications.

Coetsem, Frans van. 2000. A General and Unified Theory of the Transmission Process in Language Contact. Heidelberg: Universitätsverlag Carl Winter.

Mailhammer, Robert. 2013. Towards a framework of contact etymology. In: Mailhammer, Robert, ed. Lexical and Structural Etymology. Beyond Word Histories. Boston – Berlin: Mouton de Gruyter, s. 9–31. Studies in Language Change, Vol. 11.

Matras, Yaron. 2009. Language Contact. Cambridge: Cambridge University Press. Cambridge¨Textbooks in Linguistics.

Thomason, Sarah Grey. 2001. Language Contact: An Introduction. Edinburgh: Edinburgh University Press.

Thomason, Sarah Grey – Kaufman, Terrence. 1988. Language Contact, Creolization, and Genetic Linguistics. Berkeley – Los Angeles – Oxford: University of California Press.

Wohlgemuth, Jan. 2009. A Typology of Verbal Borrowings. Berlin – New York: Mouton de Gruyter. Trends in Linguistics. Studies and Monographs, Vol. 211.