by Mahajan, Sumati, Gupta, S.K.
Published in Expert systems with applications (15.04.2021)

by Long, Xian-Jun, Huang, Nan-Jing
Published in Taiwanese journal of mathematics (01.06.2014)

by Kim, Do Sang, Schaible, Siegfried
Published in Optimization (01.04.2004)

by Liu, Jen-Chwan
Published in Applied mathematics letters (01.08.1999)

by Abdulaleem, Najeeb
Published in Journal of physics. Conference series (01.05.2021)

by Tang, LiPing, Yan, Hong, Yang, XinMin
Published in Science China. Mathematics (01.07.2016)

by Cadenas Figueredo, José Manuel, Jiménez Barrionuevo, Fernando
Year of Publication 27.03.1994