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Bix, L; Kosugi; Wartaru; Sundar; Becker (2010). "The use of change detection as a method of objectively evaluating labels". Packaging Technology and Science. 23 (7): 393–401. doi:10.1002/pts.904. S2CID109855411.
Marcondes, Jorge; Hatton; Graham; Schueueman (July 2003). "Effect of temperature on the cushioning properties of some foamed plastic materials". Packaging Technology and Science. 16 (2): 69–76. doi:10.1002/pts.614. S2CID137404110.