%0 Journal Article %A Dalla Volta, Francesca %A Siemons, Johannes %T Orbit equivalence and permutation groups defined by unordered relations %J Journal of Algebraic Combinatorics %D 2012 %P 547-564 %V 35 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/JAC_2012__35_4_a5/ %G en %F JAC_2012__35_4_a5