%0 Journal Article %A ​Announcement ​​ %T Groups and Graphs, Designs and Dynamics %J Ars Mathematica Contemporanea %D 2018 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AMC_2018__15_1_a16/ %G en %F AMC_2018__15_1_a16