%0 Journal Article %A Federico Ardila %A Felipe Rincón %A Lauren K. Williams %T Positively oriented matroids are realizable %J Journal of the European Mathematical Society %D 2017 %P 815-833 %V 19 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/680/ %R 10.4171/jems/680 %F JEMS_2017_19_3_a3