Koohkan, H., Kimiaeifar, A., Mansourabadi, A., & Vaghefi, R. (2010). AN ANALYTICAL APPROACH ON THE BUCKLING ANALYSIS OF CIRCULAR, SOLID AND ANNULAR FUNCTIONALLY GRADED THIN PLATESGRADED THIN. Journal of Mechanical Engineering, 41(1), 7–14. https://doi.org/10.3329/jme.v41i1.5357