Liens
[1] https://lfh.edu.gr/print/1894
[2] https://lfh.edu.gr/printpdf/1894
[3] https://lfh.edu.gr/sites/default/files/ile_mysterieuse.pdf
[4] https://lfh.edu.gr/sites/default/files/defi_2.pdf
[5] https://lfh.edu.gr/sites/default/files/defi_3anneaux_olympiques.pdf
[6] https://lfh.edu.gr/sites/default/files/defi_4.pdf
[7] https://lfh.edu.gr/sites/default/files/defi5.pdf
[8] https://lfh.edu.gr/sites/default/files/defi_6.pdf
[9] https://lfh.edu.gr/sites/default/files/defi7.pdf
[10] https://lfh.edu.gr/sites/default/files/defi8lesroues.pdf
[11] https://lfh.edu.gr/sites/default/files/defi_9.pdf
[12] https://lfh.edu.gr/sites/default/files/defi_10.pdf
[13] https://lfh.edu.gr/sites/default/files/solutiondefi1_dimitri_bethanis_61.jpg
[14] https://lfh.edu.gr/sites/default/files/defi2-reponse_dorothee_bergele.pdf
[15] https://lfh.edu.gr/sites/default/files/resolution_du_defi_mathematique_3_-_dimitri_pelgrin_1.2.pdf
[16] https://lfh.edu.gr/sites/default/files/defi_4_atallah_khalil.png
[17] https://lfh.edu.gr/sites/default/files/resolution_du_defi_mathematique_8_-_dimitri_pelgrin_1.2_0.pdf
[18] https://lfh.edu.gr/sites/default/files/defi_9resolution_irina_et_yann_kjelsen.pdf
[19] https://lfh.edu.gr/sites/default/files/classement_defis_2021-college_0.xlsx
[20] https://lfh.edu.gr/sites/default/files/resultatsdefis1_2.xlsx
[21] https://lfh.edu.gr/sites/default/files/championnat_defis_avril2021college.xlsx