1. 题目：Comparison of retracking algorithms for ERS-1 altimeter data over Greenland
   作者：O. Leeuwenburgha, C. C. Tscherninga, P. Knudsenb and O. B. Andersenb
   来源：Physics and Chemistry of The Earth Volume 21, Issue 4, July 1996, Pages 331-336
doi:10.1016/S0079-1946(97)00057-8
2  题目：Multi-resolution dune morphology using Shuttle Radar Topography Mission (SRTM) and dune mobility from fuzzy inference systems using SRTM and altimetric data
   来源：International Journal of Remote Sensing
Volume 29, Issue 10, First published on 07 March 2008 Pages 2879 - 2901
   作者: L. V. Pottsab; O. Akyilmazac; A. Braund; C. K. Shumae
DOI: 10.1080/01431160701408352
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