Mohamad D.; Al Ayub Ahmed A.; Widjaja G.; Alghazali T.; Grimaldo Guerrero J.W.; Fardeeva I.; Kalajahi A.H.
(2021)
The problem studied in this paper is the p hub center and the network structure is hierarchical and in three levels; where level one is for demand nodes, level two is for hub nodes, and level three is for central hubs. ...