%0 Journal Article %A Benno van den Berg %A Chris Heunen %T Extending obstructions to noncommutative functorial spectra %J Theory and applications of categories %D 2014 %P 457-474 %V 29 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2014_29_a16/ %G en %F TAC_2014_29_a16