By then, his thought had an important influence in the Spanish anarchist movements through the help of Spanish individualist anarchists activists such as José Elizalde (his main translator into Spanish) and his group "Sol y Vida" and the individualist anarchist press such as "La Revista Blanca", "Ética" and "Iniciales" from Barcelona. "Iniciales" especially had a specific strong influence by Armand's thought. On the debate within anarchist circles he defended the Ido constructed language over Esperanto with the help of José Elizalde. He also maintained a fluid contact with important individualist anarchists of the time such as the American Benjamin Tucker and the French Han Ryner. He also contributed in a few articles in Sebastien Faure´s "Anarchist encyclopedia" and specifically he wrote the article on the encyclopedia on individualist anarchism.