TY - JOUR T1 - Integration of plasticity equations for singular yield functions JO - Computers & Structures PY - 1987/01/01 AU - de Borst R ED - DO - DOI: 10.1016/0045-7949(87)90032-0 PB - Elsevier BV VL - 26 IS - 5 SP - 823 EP - 829 Y2 - 2024/12/25 ER -