WASET
    Areti Tziboula and  Anna-Maria Rentzeperi-Tsonou,  Libretto Thematology in Rossini's Operas and Its Formation by the Composer.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2022, vol. 185(5). 244 - 249
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10012536.