TY - JOUR T1 - The zero-normal-stress condition in plane-stress and shell elastoplasticity JO - Communications in Applied Numerical Methods PY - 1991/01/02 AU - De Borst R ED - DO - DOI: 10.1002/cnm.1630070105 PB - Wiley VL - 7 IS - 1 SP - 29 EP - 33 Y2 - 2024/12/22 ER -