@book{3033,
	author = {Arfken, George B.},
	title = {Mathematical Methods for Physicists},
	publisher = {Academic Press},
	address = {India},
	edition = {6th},
	url = {https://libgen.is/book/index.php?md5=736C08A845F34A984FD35E154F51E9F6}
}