List of Articles A.H. Sofiyev Article 1 - The Buckling of Non-Homogeneous Truncated Conical Shells under a Lateral Pressure and Resting on a Winkler Foundation 20.1001.1.20083505.2009.1.1.2.1 A.H Sofiyev A Valiyev P Ozyigit Journal of Solid Mechanics , Issue 1 , Year , Winter 2009 Article 2 - Torsional Stability of Cylindrical Shells with Functionally Graded Middle Layer on the Winkler Elastic Foundation 20.1001.1.20083505.2011.3.3.2.9 A.H Sofiyev S Adiguzel Journal of Solid Mechanics , Issue 4 , Year , Summer 2011