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IEEE Transactions on Visualization and Computer Graphics > 2010 > 16 > 3 > 468 - 483
Contemporary Educational Psychology > 2007 > 32 > 4 > 551-568
Computers and Geosciences > 1997 > 23 > 4 > 447-456
IEEE Transactions on Visualization and Computer Graphics > 2010 > 16 > 3 > 468 - 483
Contemporary Educational Psychology > 2007 > 32 > 4 > 551-568
Computers and Geosciences > 1997 > 23 > 4 > 447-456