Z. POZORSKI, R. SÓL, J. SZAJDA, and J. BŁASZCZUK, “Structural Behavior of Sandwich Panels with External Deep-Profiled and Internal Soft Facing”, Eng. Trans., vol. 61, no. 3, pp. 173–184, Sep. 2013, doi: 10.24423/engtrans.14.2013.