TAPESG: Grid-based Terrain Analysis Software

http://www.uscgislab.net/incEngine/index.php?art=software

http://www.uscgislab.net/incEngine/index.php?art=theses

http://www.ncgia.ucsb.edu/conf/SANTA_FE_CD-ROM/sf_papers/mueller_dirk/dmwpaper.html

http://geoinformatics.sut.ac.th/sut/student/AdvGISpresent/2005-2/solar.pdf