Atkočiūnas, Juozas, and Antanas Krutinis. “Academician Aleksandras Čyras As the Pioneer of Optimizational Structural Mechanics in Lithuania”. Journal of Civil Engineering and Management 3, no. 9 (March 31, 1997): 6-10. Accessed November 22, 2024. https://journals.vilniustech.lt/index.php/JCEM/article/view/9492.