Eid, I., Halim, A., Easa, S. (2013). 'Effect of Opposed Lateral and Vertical Eccentricity on Free Convection in an Elliptical Annulus Enclosure in Blunt and Slender Orientations', Port-Said Engineering Research Journal, 17(2), pp. 30-40. doi: 10.21608/pserj.2013.46926