Ohad Perry, Ward Whitt. Diffusion approximation for an overloaded X model via a stochastic averaging principle. Queueing Syst., 76(4):347-401, 2014. [doi]
@article{PerryW14,
title = {Diffusion approximation for an overloaded X model via a stochastic averaging principle},
author = {Ohad Perry and Ward Whitt},
year = {2014},
doi = {10.1007/s11134-013-9363-9},
url = {http://dx.doi.org/10.1007/s11134-013-9363-9},
researchr = {https://researchr.org/publication/PerryW14},
cites = {0},
citedby = {0},
journal = {Queueing Syst.},
volume = {76},
number = {4},
pages = {347-401},
}