Esperanto: The Bridge Between Nationalism and Internationalism in Catalonia”

Pilar Requejo de Lamo

EPOCH Magazine, Issue 2, December 2020

https://www.epoch-magazine.com/delamoesperanto

“TEKA: A Transnational Network of Esperanto-Speaking Physicians”

Marcel Koschek

The Hungarian Historical Review 10, no. 2 (2021), pp. 243–266.

https://doi.org/10.38145/2021.2.243

“Ways to Track Down a Transnational Movement”

Marcel Koschek

Global History Blog, Scottish Centre for Global History

https://globalhistory.org.uk/2021/04/ways-to-track-down-a-transnational-movement/