World Esperanto Association
After his graduation in phonetics, in 1962, at the end of that year he started working at the central office of the World Esperanto Association (UEA), in Rotterdam (Netherlands), where he cared after the magazine "Esperanto". He also served as redactor of "Monda Kulturo", during the short lifespan of this other periodical, and he cared after the Hector Hodler library, which is still nowadays one of the richest Esperanto libraries in the world.