John H. Beggs
An implicit characteristic based method for electromagnetics
The linear bicharacteristic scheme for electromagnets
User's manual for three dimensional FDTD version A code for scattering from frequency-independent dielectric materials
User's manual for three dimensional FDTD version C code for scattering from frequency-independent dielectric and magnetic materials
User's manual for three dimensional FDTD version D code for scattering from frequency-dependent dielectric and magnetic materials
User's manual for two dimensional FDTD version TEA and TMA codes for scattering from frequency-independent dielectric materials