Digital watermarking [Electronic resource] : 5th international workshop, IWDW 2006, Jeju Island, Korea, November 8-10, 2006 : proceedings / eds. Y. Shi, B. Jeon. - Electronic text data. - Berlin ; Heidelberg : Springer, 2006. - (Lecture notes in computer science, ISSN 0302-9743 ). - ISBN 978-3-540-48827-9 : Б. ц.