%0 Journal Article %A Alpay, Daniel %A Kalyuzhnyı̆-Verbovetzkiı̆, Dmitry S. %T On the intersection of null spaces for matrix substitutions in a non-commutative rational formal power series %J Comptes Rendus. Mathématique %D 2004 %P 533-538 %V 339 %N 8 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2004.08.005/ %R 10.1016/j.crma.2004.08.005 %G en %F CRMATH_2004__339_8_533_0