Description of document versions ==================================== .. csv-table:: "**Code_Aster Version**", "**Author (s)** **Organization (s)**", "**Description of changes**" "6.4", "A. ASSIRE, EDF -R&D/ AMA ", "Initial text" "8.4", "A. ASSIRE, X. DESROCHES, J.M. PROIX, EDF -R&D/ AMA ", "Minimal corrections" "15", "F. VOLDOIRE, EDF -R&D/ ERMES ", "Corrections (for better understanding)"