%0 Journal Article %A Ben-Artzi, Jonathan %A Hansen, Anders C. %A Nevanlinna, Olavi %A Seidel, Markus %T New barriers in complexity theory: On the solvability complexity index and the towers of algorithms %J Comptes Rendus. Mathématique %D 2015 %P 931-936 %V 353 %N 10 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2015.08.002/ %R 10.1016/j.crma.2015.08.002 %G en %F CRMATH_2015__353_10_931_0