@book{63401,
	author = {Fox, Frank, and Mrkvicka, Jan Vaclav,},
	title = {Bulgaria},
	publisher = {Project Gutenberg,},
	year = {2007},
	address = {Salt Lake City, UT :},
	note = {Release date is 2007-08-06},
	url = {https://www.gutenberg.org/ebooks/22257}
}