@article {kar2005ground,
	title = {Ground state and resonance state of Ps\^{}$\{$-$\}$ in plasmas with various Debye lengths},
	journal = {Physical Review A},
	volume = {71},
	number = {5},
	year = {2005},
	note = {n/a},
	pages = {052503},
	publisher = {APS},
	abstract = {n/a},
	author = {Kar, Sabyasachi and Ho, YK}
}
