Frolovs, Ģirts, Kārlis Rocēns, and Jānis Šliseris. “Comparison of a Load Bearing Capacity for Composite Sandwich Plywood Plates”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 16, 2015): 39–45. Accessed May 17, 2024. https://journals.rta.lv/index.php/ETR/article/view/633.