Erik Lintz Christensen Niels Skou Jørgen Dall Kim Wildt Woelders Jan Hjelm Jørgensen Johan Granholm Søren Nørvang Madsen EMISAR: an absolutely calibrated polarimetric L- and C-band SAR. 1852-1865 1998 36 IEEE Trans. Geosci. Remote. Sens. 6 https://doi.org/10.1109/36.729356 db/journals/tgrs/tgrs36.html#ChristensenSDWJGM98