Shokrollahzadeh Behbahani, S., Masihi, M., & Ghazanfari, M. H. "The Effect of Permeability Contrast in Percolation Reservoir Models on the Breakthrough Time Distribution", Journal of Petroleum Science and Technology, 12, 1, 2022, 52–61. doi: 10.22078/jpst.2022.4830.1807