@article{201909.0173,
	doi = {10.20944/preprints201909.0173.v1},
	url = {https://doi.org/10.20944/preprints201909.0173.v1},
	year = 2019,
	month = {September},
	publisher = {Preprints},
	author = {Ulrich Müller and Armin Lude and Dawson R. Hancock},
	title = {Leading Schools towards Sustainability. Fields of Action and Management Strategies for Principals},
	journal = {Preprints}
}