@book{251333,
	author = {Graffigny, H. de and Henriot,},
	title = {Aventures Extraordinaires d'un Savant Russe; III. Les Planètes Géantes et les Comètes},
	publisher = {Project Gutenberg,},
	year = {2007},
	url = {http://www.gutenberg.org/ebooks/22078}
}