@Misc{ NicLucBoz22, author = { Edelen, Nick and Spolaor, Luca and Velichkov, Bozhidar }, title = { A strong maximum principle for minimizers of the one-phase Bernoulli problem }, journal = { Indiana Math. J. }, year = { 2022 }, pages = { }, URL = { http://cvgmt.sns.it/paper/5533/ }, note = { cvgmt preprint} }