%0 Journal Article %A David Gontier %T Spectral properties of periodic systems cut at an angle %J Comptes Rendus. Mathématique %D 2021 %P 949-958 %V 359 %N 8 %I Académie des sciences, Paris %R 10.5802/crmath.251 %G en %F CRMATH_2021__359_8_949_0