Retamoso, M., de Vilhena, M., de Campos Velho, H., & Ramos, F. (2000). An Implicit Inversion Method for Estimating Boundary Conditions in Hydrologic Optics. Trends in Computational and Applied Mathematics, 1(2), 455–462. https://doi.org/10.5540/tema.2000.01.02.0455