Curt H. Davis Craig A. Kluever Bruce J. Haines Cesar Perez Yoke T. Yoon Improved elevation-change measurement of the southern Greenland ice sheet from satellite radar altimetry. 1367-1378 2000 38 IEEE T. Geoscience and Remote Sensing 3 http://dx.doi.org/10.1109/36.843031 db/journals/tgrs/tgrs38.html#DavisKHPY00