Sadodin, , Sadodin, , Jabbari, (2012). 'REDUCTION IN HEAT TRANSFER BETWEEN TWO CONCENTRIC CYLINDERS, THICK AND LONG USING THICK RADIATION SHIELDS WITH TEMPERATURE- DEPENDENT EMISSIVITY', Journal of Modeling in Engineering, 9(27), pp. 61-71. doi: 10.22075/jme.2017.1603