@article{Burch _2011 author = {Nathanial Burch and Richard Lehoucq}, title = {CLASSICAL, NONLOCAL, AND FRACTIONAL DIFFUSION EQUATIONS ON BOUNDED DOMAINS}, journal = {International Journal for Multiscale Computational Engineering}, issn = {1543-1649}, year = {2011}, volume = {9}, number = {6}, pages = {661--674} }