%0 Journal Article %A Miguel Raggi %T Forbidden configurations: Finding the number predicted by the Anstee-Sali conjecture is NP-hard %J Ars Mathematica Contemporanea %D 2016 %P 1-8 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.438.300/ %R 10.26493/1855-3974.438.300 %G en %F 10_26493_1855_3974_438_300