Waldeck, Marie-Luise, ‘Shadows, Reflexions, Mirror-Images and Virtual "Objects" in "Die Künstler" and Their Relation to Schiller's Concept of "Schein"’, in Modern Language Review, 58.1 (1963), pp. 33–37, doi:10.2307/3720393

Waldeck, Marie-Luise, review of B. A. Sørensen, Symbol und Symbolismus in den ästhetischen Theorien des 18. Jahrhunderts und der deutschen Romantik, in Modern Language Review, 59.4 (1964), pp. 675–76, doi:10.2307/3721091