TY - RPRT TI - GPRMODEL one-dimensional full waveform forward modeling of ground penetrating radar data AU - Michael H. Powers AU - S.K. Duke AU - A. C. Huffman AU - G.R. Olhoeft PY - 1992 DO - 10.3133/ofr92532a UR - https://pubs.usgs.gov/publication/ofr92532A ID - ofr92532A ER -