Elliott, Linda Louise. Maurice Maeterlinck and Pelléas et Mélisande, Nathaniel Hawthorne and The Scarlet Letter: A Comparative Study, thesis, December 1974; (https://digital.library.unt.edu/ark:/67531/metadc663250/m1/1/: accessed November 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .