Fernández-Sáez, J., Rubio, L., de Luna, S., Pérez-Castellanos, J. L., & Navarro, C. (2001). Determination of dynamic fracture initiation toughness of linear elastic materials. Revista De Metalurgia, 37(1), 34–48. https://doi.org/10.3989/revmetalm.2001.v37.i1.439