@misc{indiciae87c6b10ca804, title = {Imperatives for predicting preferential and diffuse flow in the unsaturated zone: 2. Disparate formulation}, author = {John R. Nimmo}, year = {2020}, doi = {10.1002/hyp.13957}, url = {https://pubs.usgs.gov/publication/70235840}, note = {Source identifier: 70235840} }