@article {10486,
	title = {Excitons in spatially separated electron-hole systems: A quantum Monte Carlo study},
	journal = {Journal of Applied Physics},
	year = {1995},
	pages = {7099-7102},
	doi = {10.1063/1.360417},
	author = {E.G. Wang and Yucai Zhou and C.S. Ting and Jianbo Zhang and Tao Pang and Changfeng Chen}
}
