Suggested values of lr were obtained for modeling these stress waves accurately.
Gaofeng Zhao 2014, 'Modeling stress wave propagation in rocks by distinct lattice spring model', Journal of Rock Mechanics and Geotechnical Engineeringhttp://www.sciencedirect.com/science/article/pii/S1674775514000511. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)