Hasanzadehshooiili, H., Lakirouhani, A. and Medzvieckas, J. 2012. Superiority of artificial neural networks over statistical methods in prediction of the optimal length of rock bolts. Journal of Civil Engineering and Management. 18, 5 (Sep. 2012), 655-661. DOI:https://doi.org/10.3846/13923730.2012.724029.