[1]
W. BODASZEWSKI, “Algorithms of the Method of Statically Admissible Discontinuous Stress Fields (SADSF) — Part IV: Integration of Fields Around Nodes into Planar Complex Fields”, Eng. Trans., vol. 53, no. 2, p. 119–-131, Jun. 2005, doi: 10.24423/engtrans.435.2005.