Tiẓri n waṭas inagrawen tanerna deg yiseggasen n 1970 sɣur ITAMAR Even-Zohar, tekka-d seg tmiḍrant unagraw yettwasemrasen sɣur TYNJANOR deg useggas n 1929, yesseqdec-itt deg tezrawt n tsekla anda i tt-yeḥseb am unagraw n yinagrawen.