Tiẓri n wurar tersa ɣef yiwen n wagaz sɣur NEUMANN John-Von akken ad d-yaru assaɣen n saḥa d lmaṣalaḥa i d-yettilin s taɣedweft n umennuɣ yebnan ɣef umeɣzan d lsas allaɣan.