 In addition, this paper also shows that this class of group-server queues are often encountered in  other practical areas including communication networks, manufacturing systems, transportation networks, financial networks and healthcare systems.
<clarity>  In addition, this paper also shows that this class of group-server queues are often encountered in  other practical areas including communication networks, manufacturing systems, transportation networks, financial networks and healthcare systems.
 In addition, this paper also shows that this class of group-server queues are often encountered in many other practical areas including communication networks, manufacturing systems, transportation networks, financial networks and healthcare systems.