@book{96622,
	author = {Doehlemann, Karl,},
	title = {Grundzüge der Perspektive nebst Anwendungen},
	publisher = {Project Gutenberg,},
	year = {2017},
	address = {Salt Lake City, UT :},
	note = {Release date is 2017-10-22},
	url = {https://www.gutenberg.org/ebooks/55791}
}