Castro, Álvaro, Espejo, E. and Martínez, L. (2000) “Study on the types of craters produced in the impact of projectiles 5,56 SS109, over steel targets AISI-SAE 1045”, Revista de Metalurgia, 36(1), pp. 24–32. doi: 10.3989/revmetalm.2000.v36.i1.553.