%0 Journal Article %A Kuwert, Ernst %A Lamm, Tobias %T Reflection of Willmore Surfaces with Free Boundaries %J Canadian journal of mathematics %D 2021 %P 787-804 %V 73 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008414X20000164/ %R 10.4153/S0008414X20000164 %F 10_4153_S0008414X20000164