%0 Journal Article %T A two-phase problem with Robin conditions on the free boundary %J Journal de l’École polytechnique — Mathématiques %D 2021 %P 1-25 %V 8 %I École polytechnique %U https://doi.org/10.5802/jep.139 %R 10.5802/jep.139 %G en %F JEP_2021__8__1_0