1. A.K. Aras, Y. Liu, W. Whitt, Heavy-traffic limits for the initial content process, Working paper, 2014.
2. Transient laws of nonstationary queueing systems and their applications;Bertsimas;Queueing Syst.,1997
3. Convergence criteria for multiparameter stochastic processes and some applications;Bickel;Ann. Math. Statist.,1971
4. Convergence of Probability Measures;Billingsley,1999
5. Asymptotic Methods in Queueing Theory;Borovkov,1984