Berlioz, Dominique. 1995. “The "Co-Existent" and ‘In-Existent’ Calculus and Leibnizian Metaphysics of Expression”. Acta Universitatis Lodziensis. Folia Philosophica. Ethica-Aesthetica-Practica, no. 11 (January):111-24. https://doi.org/10.18778/0208-6107.11.08.