@article{rocchia2001extending,
author = "W. Rocchia and E. Alexov and B. Honig",
title = "Extending the applicability of the nonlinear Poisson- Boltzmann equation: multiple dielectric constants and multivalent ions",
year = 2001,
journal = "The Journal of Physical Chemistry B",
publisher = "American Chemical Society",
volume = 105,
number = 28,
pages = "6507-6514"
}