Multi-layered folding with voids by T. J. Dodwell, G. W. Hunt, M. A. Peletier, and C. J. Budd Philosophical Transactions A Volume 370(1965):1740-1758 April.
Toner-print removal from paper by long and ultrashort pulsed lasers by David Ricardo Leal-Ayala, J. M. Allwood, M. Schmidt, and I. Alexeev Proceedings.