TY - RPRT TI - User's manual for two dimensional FDTD version TEA and TMA codes for scattering from frequency-independent dielectric materials AU - Beggs, John H. AU - Luebbers, Raymond J. AU - Kunz, Karl S. PY - 1991 UR - https://ntrs.nasa.gov/citations/19920011244 ID - 19920011244 ER -