@article{publication-17163,
	author={Broda, Simon A},
	doi={10.1093/biomet/asz018},
	issn={0006-3444},
	journal={Biometrika},
	number=3,
	pages={740-747},
	publisher={Oxford University Press},
	title={Testing for Individual Sphericity in Heterogeneous Panels},
	volume=106,
	year=2019,
}