Starov, Aleksandr, and Sergei Kalashnikov. “A.A. ILYUSHIN’S FINAL RELATION, ALTERNATIVE EQUIVALENT RELATIONS AND VERSIONS OF ITS APPROXIMATION IN PROBLEMS OF ELASTIC DEFORMATION OF PLATES AND SHELLS. PART 2: ALTERNATIVE EQUIVALENT RELATIONS OF A.A. ILYUSHIN”. International Journal for Computational Civil and Structural Engineering 16, no. 3 (September 24, 2020): 78–99. Accessed April 23, 2024. https://ijccse.iasv.ru/index.php/ijccse/article/view/310.