Article

Gradin, P.A., Graham, D., Nygård, P. and Vallen, H. (2007) The use of acoustic emission monitoring to rank paper materials with respect to their fracture toughness. Experimental Mechanics, 48 (1). pp. 133-137. ISSN 0014-4851 (Print), 1741-2765 (Online) (doi:10.1007/s11340-007-9055-7)

Conference Proceedings

Gradin, P., Vallen, H., Graham, D., Nygard, P. and Gregersen, Ø.W. (2004) Acoustic emission testing of paper. In: Proceedings of the 2004 Progress in Paper Physics Seminar. NTNU (Norwegian University of Science and Technology) and PFI (Paper and Fibre Research Institute), Trondheim, Norway, p. 155. (Unpublished)