For the first time, Mireille Grosjean, president of the International League of Esperanto Teachers, meets Alexandre Roulin, a biologist at the University of Lausanne.


https://www.rts.ch/play/radio/premier-rendez-vous/audio/mireille-grosjean-et-alexandre-roulin-se-rencontrent-pour-la-premiere-fois?id=10428081