Sorkin, Evgeny Geometric Analysis and Gravitation, AEI Golm, MPI for Gravitational Physics, Max Planck Society;
0911.2011v1.pdf (Preprint), 2MB
PRD_81_084062.pdf (Any fulltext), 4MB
Sorkin, E. (2010). An axisymmetric generalized harmonic evolution code. Physical Review D., 81: 084062. doi:10.1103/PhysRevD.81.084062.