@book{90012,
	author = {Bagar, Robert C.,},
	title = {Wagner and His Music-Dramas},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-06-09},
	url = {https://www.gutenberg.org/ebooks/49174}
}