Verma, Sumit; Mukherjee, V.: 'Symbiotic organisms search algorithm for static and dynamic transmission expansion planning' (Control, Robotics and Sensors, 2018), 'Swarm Intelligence -Volume 2: Innovation, new algorithms and methods', Chap. 16, pp. 445-465, DOI: 10.1049/PBCE119G_ch16
IET Digital Library, https://digital-library.theiet.org/;jsessionid=7dodopepgd44n.x-iet-live-01content/books/10.1049/pbce119g_ch16