Informilo por Interlingvistoj (IPI) is published four times a year by The Center for Research and Documentation on World Language Problems (CED). IPI seeks to keep Interlinguists throughout the world up-to-date on research and events occuring in the field. The newsletter is published largely in Esperanto and is available in both online and print versions. To request print copies, contact the Universal Esperanto Association: . IPI continues to issue publications each year thanks, in part, to an operating grant from ESF.
Click here to access issues of the newsletter.