@article{publication-1983,
	author={Ewerhart, Christian},
	doi={10.1007/s00199-002-0291-x},
	issn={0938-2259},
	journal={Economic Theory},
	number=2,
	pages={415-418},
	publisher={Springer},
	title={A short and intuitive proof of Marshall's rule},
	volume=22,
	year=2003,
}