@article{CostanzaRobinson11,
    author = {Costanza-Robinson, Molly S. and Estabrook, Benjamin D. and Fouhey, David F.},
    title = {Representative elementary volume estimation for porosity, moisture saturation, and air-water interfacial areas in unsaturated porous media: Data quality implications},
    journal = {Water Resources Research},
    volume = {47},
    number = {7},
    year = {2011},
}