Manafi, H., N. Ghadimi, M. Ojaroudi, and P. Farhadi. 2013. “Optimal Placement of Distributed Generations in Radial Distribution Systems Using Various PSO and DE Algorithms”. Elektronika Ir Elektrotechnika 19 (10):53-57. https://doi.org/10.5755/j01.eee.19.10.1941.