J-P Richard yexdem aṭas ɣef umhaz n tewsit n wungal . Ar ɣur-s netta ungal maci kan d tawsit ijemlen maɛna d asenfar yettnarnayen yettili-d umaynut deg yeḍrisen-is . Richard yewwi-d axeddim-is imi yeḍfer G. Bachelard akk d G. Poulet i yetnadin assaɣ ger tira d tudert n umaḍal , s unadi ɣef tugniwin d yiḥulfan i yellan daxel n wungal . Yetwali ungal amakken d anadi ur iban ara ɣef wacu i tetnadi , d akala n tira i yettwabnan s wassaɣ n tarmit n umeslay , anida imeɣri yettuɣal d allal n tira d uɛiwed n uḍris . Tasleḍt-agi tessebgan-d d akken yella-d umhaz deg tewsit n wungal , tilin-tt-d talɣiwin yemxalafen , isental akk d tamiwin i yefɣen ayen yellan deg leɛwayed n tewsit-agi n wungal , yettuɣalen d tallunt n wannar aḥeqqi n umaḍal n yiḥulfan . 9