sentences:  In 1960, the Breton scholar Francis Gourvil wrote a doctorate thesis in which he maintained that Luzel was right.In 1989, the musician and linguist Donatien Laurent demonstrated, in a thesis based on the manuscripts of La Villemarqué, that even if the author had revised the lyrics, he still nearly always relied upon the versions that he himself had collected or transcribed.Luzel's career trajectory changed yet again in 1874, when he started writing political editorials for the Republican newspaper, l'Avenir de Morlaix, where he would work until 1880.