array(5) { [0]=> string(75) "Digital Watermarking - Fifth International Workshop IWDW 2006; Yun Qing Shi" [1]=> string(25) " Byeungwoo Jeon (Springer" [2]=> string(23) " 2006).(incomplete).pdf" [3]=> string(9) " 12375052" [4]=> string(21) " 2010-04-18 13:15:5 " }