@book{112018,
	author = {Babbage, Charles,},
	title = {The calculating engine},
	publisher = {Project Gutenberg,},
	year = {2023},
	address = {Salt Lake City, UT :},
	note = {Release date is 2023-07-28},
	url = {https://catalog.hathitrust.org/Record/000530182}
}