A low-order quasidiffusion discretization via linear-continuous finite-elements on unstructured triangular meshes
Wieselquist, W. A. (2010). A low-order quasidiffusion discretization via linear-continuous finite-elements on unstructured triangular meshes. In Vol. 1. International conference on the physics of reactors 2010 (pp. 182-197). American Nuclear Society.