https://www.concours-commun-inp.fr/_resource/annales%20%C3%A9crits/2025/PSI/Rapport%20Ecrits%20Modelisation%20PSI%202025.pdf?download=true
https://www.concours-commun-inp.fr/_resource/annales%20%C3%A9crits/2025/PSI/Rapport%20Ecrits%20Modelisation%20PSI%202025.pdf?download=true