Source: https://www.researchgate.net/profile/Belagrouz-Abdenour/publication/342926927_Etude_comparative_des_varietes_elites_de_ble_dur_Triticum_turgidum_L_Thellssp_turgidumconv_durum_Desf_MacKey_sous_conditions_semi-arides_des_hautes_plaines_orientales/links/5f0e0da74585151299990cd0/Etude-comparative-des-varietes-elites-de-ble-dur-Triticum-turgidum-L-Thellssp-turgidumconv-durum-Desf-MacKey-sous-conditions-semi-arides-des-hautes-plaines-orientales.pdf