%0 Journal Article %A Jonathon Funk %A Pieter Hofstra %A Benjamin Steinberg %T Isotropy and crossed toposes %J Theory and applications of categories %D 2012 %P 660-709 %V 26 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2012_26_a23/ %G en %F TAC_2012_26_a23