Analysis of information sources in references of the Wikipedia article "Marie-Thérèse, Duchess of Angoulême" in English language version.
il mit sa signature de fils de France au-dessous de celle de son père: LOUIS ANTOINE, montrant ainsi qu'il ne se considérait point roi Louis XIX entre le moment où son père avait signé CHARLES et celui où il avait mis son propre nom.... Ceci dit pour corriger les auteurs qui sont nombreux à dire que l'on eut quelques minutes durant un roi Louis XIX en 1830." [He put his signature as son of France below that of his father: LOUIS ANTOINE, thus showing that he did not consider himself king Louis XIX between the time when his father signed CHARLES and the time when he put his own name... This is said to correct the authors who are numerous to say that we had for a few minutes a King Louis XIX in 1830]