%0 Journal Article %A Fish, Alexander %T Extensions of Schreiber’s theorem on discrete approximate subgroups in $\protect \mathbb{R}^d$ %J Journal de l’École polytechnique — Mathématiques %D 2019 %P 149-162 %V 6 %I Ecole polytechnique %U http://www.numdam.org/articles/10.5802/jep.90/ %R 10.5802/jep.90 %G en %F JEP_2019__6__149_0