@article {Holtzman2009,
	title = {Mechanical properties of granular materials: A variational approach to grain-scale simulations},
	journal = {Int. J. Numer. Anal. Methods Geomech.},
	year = {2009},
	keywords = {grain-scale simulations, granular matter, hydrate dissociation, micromechanics, quasi-static deformation, variational approach},
	doi = {10.1002/nag},
	url = {http://onlinelibrary.wiley.com/doi/10.1002/nag.725/abstract},
	author = {Holtzman, R and Silin, DB and Patzek, TW}
}
