%0 Journal Article %A Chaumont-Frelet, T. %A Nicaise, S. %T High-frequency behaviour of corner singularities in Helmholtz problems %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2018 %P 1803-1845 %V 52 %N 5 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2018031/ %R 10.1051/m2an/2018031 %G en %F M2AN_2018__52_5_1803_0