1. Asenov, K. (2018). Anthropology of the “Ghetto” – Space and culture (pp. 82–83). Studio 18. [Асенов, К. (2018) Антропология на „Гетото“ – пространство и култура. Изд. „Студио 18,” стр. 82–83].
2. Asenov, K. (2020). Roma colonization. Beyond the Ecumene – On the tracks of the Proto-Roma. In Problems of geography (Vol. 1–2, pp. 31–49). Bulgarian Academy of Science. [Асенов, К. (2020). Ромската колонизация. Отвъд Ойкумена – По следите на проторомите. В: Проблеми на географията 1–2, БАН – София, с. 31–49.].
3. Council of Europe: Commissioner for Human Rights, Human rights of Roma and Travelers in Europe. (2012a, February). isbn 978-92-871-7200-6, p. 3. Available at: https://www.refworld.org/docid/4fa21d2a2.html. Accessed 10 Mar 2021.
4. Council of Europe: Commissioner for Human Rights, Human rights of Roma and Travelers in Europe. (2012b, February). isbn 978-92-871-7200-6, p. 10. Available at: https://www.refworld.org/docid/4fa21d2a2.html. Accessed 10 Mar 2021.
5. Deutsche Welle. (2020, November 18). Accessed 17 Jan 2021. https://www.goethe.de/ins/bg/bg/kul/mag/21898936.html.