@book{306819,
	author = {Guanghui Ren},
	title = {High Security Multiple-image Encryption using Discrete Cosine Transform and Discrete Multiple-Parameter Fractional Fourier Transform },
	publisher = {Journal of Communications},
	url = {http://www.jocm.us/index.php?m=content&c=index&a=lists&catid=161}
}