Ortega, A., Maimí, P., González, E., & Trias, D. (2017). Specimen geometry and specimen size dependence of the $${\mathcal {R}}$$ -curve and the size effect law from a cohesive model point of view. International Journal of Fracture, 205(2), 239-254. https://doi.org/10.1007/s10704-017-0195-1

Ortega, Adrián, Pere Maimí, Emilio González, and Daniel Trias. "Specimen Geometry and Specimen Size Dependence of the $${\mathcal {R}}$$ -curve and the Size Effect Law from a Cohesive Model Point of View." International Journal of Fracture 205, no. 2 (2017): 239-254. https://doi.org/10.1007/s10704-017-0195-1.

Ortega, Adrián, et al. "Specimen Geometry and Specimen Size Dependence of the $${\mathcal {R}}$$ -curve and the Size Effect Law from a Cohesive Model Point of View." International Journal of Fracture, vol. 205, no. 2, 2017, pp. 239-254, https://doi.org/10.1007/s10704-017-0195-1.