Amarikani  Stith Thompson  ikemmel axeddim-is si tgejdit n yal merra n  the types of the folklate  1921. Asismel  Aerne-thompson  yuɣal d agraɣlan tettaǧǧa abeddi n taynarratin n tmucuha s userwes n yal tasenfelt d izmamen agraɣlaniyen am izmamen id yekkan di tmucuha tiɣerfanin n urumi  Paul Delarue  d  Marie. Louis Tenze .