1.
Ganczarski A, Lenczowski J. On the convexity of the Goldenblat-Kopnov yield condition. Arch. Mech. [Internet]. 1997 Jun. 30 [cited 2026 Mar. 4];49(3):461-75. Available from: http://am.ippt.gov.pl/index.php/am/article/view/v49p461