%0 Journal Article %A Martin R. Bridson %T The rhombic dodecahedron and semisimple actions of ${\rm{Aut}}(F_n)$ on {\rm CAT}$(0)$ spaces %J Fundamenta Mathematicae %D 2011 %P 13-25 %V 214 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm214-1-2/ %R 10.4064/fm214-1-2 %G en %F 10_4064_fm214_1_2