Author not established. Abraham Ghebreghiorgis (MIT) - Memorial. Date not established. EHREA archive: /library/documents/doc-fffb17d98d828ddd242312a9/
[1] Abraham Ghebreghiorgis (MIT) - Memorial. Original source: http://www.ehrea.org/Abraham%20Ghebreghiorgis.htm. Preserved original: /library/originals/4c60c5b553aff5673671f9e397b647d7d642adfc41b319012360e78e0c50ac80.html. SHA-256: 4c60c5b553aff5673671f9e397b647d7d642adfc41b319012360e78e0c50ac80