Kruszka, L., G.V. Stepanov, V.V. Kharchenko, and V.I. Zubov. 2015. “Experimental and Computer Analyses of Impact Penetration of a Steel Rod into Heavy Plates Of Steel and Aluminum Alloys”. Engineering Transactions 52 (4): 217–230. https://doi.org/10.24423/engtrans.454.2004.