@book{98976,
	author = {Rothe, Rudolf,},
	title = {Darstellende Geometrie des Geländes :},
	publisher = {Project Gutenberg,},
	year = {2018},
	address = {Salt Lake City, UT :},
	note = {Release date is 2018-10-21},
	url = {https://www.gutenberg.org/ebooks/58148}
}