@unpublished{publication-19931,
	author={Lichand, Guilherme and Christen, Julien},
	institution={University of Zurich},
	issn={1664-705X},
	number=363,
	pages=46,
	series={Working paper series / Department of Economics},
	title={Behavioral nudges prevent student dropouts in the pandemic},
	year=2021,
}