DeVito, Carl L. (1992), «Languages, Science and the Search for Extraterrestrial Intelligence», Leonardo25 (1): 13-16, JSTOR1575613, doi:10.2307/1575613..
DeVito, Carl L. (1992), «Languages, Science and the Search for Extraterrestrial Intelligence», Leonardo25 (1): 13-16, JSTOR1575613, doi:10.2307/1575613..