A. Porjazoska Kujundziski, T. Grchev, C. Chamovska, and M. Cvetkovska, “Fatty food, or fatty food simulants and PET packaging interactions: study with DETA”, Maced. J. Chem. Chem. Eng., vol. 32, no. 2, pp. 283–297, Dec. 2013.