Fèvre, Raymond. “Cosmological Constant (Λ); Fine Structure Constant (α) Two Results of Friedmann-Planck-Schwarzschild Models on Vacuum and Elementary Particles”. European Journal of Applied Sciences 10, no. 1 (February 23, 2022): 500–519. Accessed May 30, 2026. https://scholarpublishing.org/journals/index.php/EJAS/article/view/8064.