@book{15680,
	author = {Vogel-Prandtl, Johanna},
	title = {Ludwig Prandtl},
	url = {https://library.oapen.org/bitstream/20.500.12657/37085/1/GKSM9_prandtl_engl.pdf||https://library.oapen.org/bitstream/20.500.12657/37085/1/GKSM9_prandtl_engl.pdf}
}