@article {2234,
	title = {Quantum entanglement for two electrons in the excited states of helium-like systems},
	journal = {Can. J. Phys.},
	volume = {93},
	year = {2015},
	pages = {1-8},
	attachments = {https://labs.iams.sinica.edu.tw/project/sites/default/files/ykho/files/2015_6.pdf},
	author = {Lin, Yen-Chang and Ho, Yew Kam}
}
