R. Jahanmardi, B. Kangarlou, and A. R. Dibazar, “Effects of organically modified nanoclay on cellular morphology, tensile properties, and dimensional stability of flexible polyurethane foams”, J. Nanostruct. Chem., vol. 3, no. 1 (December 2013), Nov. 2013, doi: 10.1186/2193-8865-3-82.