TY - CONF T1 - Material instabilities and internal length scales JO - COMPUTATIONAL PLASTICITY: FUNDAMENTALS AND APPLICATIONS, PTS 1 AND 2 PY - 1997/01/01 AU - deBorst R AU - Wang WM AU - Geers MGD AU - Sluys LJ ED - SP - 56 EP - 71 Y2 - 2024/12/25 ER -