Deori, Sanjay, et al. “HDM-4 Deterioration Modelling: Validation and Adoption for Flexible Pavements With Modified Bituminous Road Surfacing”. The Baltic Journal of Road and Bridge Engineering, vol. 14, no. 2, June 2019, pp. 208-26, https://doi.org/10.7250/bjrbe.2019-14.440.