@article {162,
	title = {Input-output formalism for few-photon transport: A systematic treatment beyond two photons},
	journal = {Physical Review A},
	volume = {91},
	year = {2015},
	month = {04/2015},
	issn = {1050-2947},
	doi = {10.1103/PhysRevA.91.043845},
	url = {http://link.aps.org/doi/10.1103/PhysRevA.91.043845http://link.aps.org/article/10.1103/PhysRevA.91.043845},
	author = {Xu, Shanshan and Fan, Shanhui}
}
