----------------------------Original message---------------------------- Hello everyone... I am a final year student of geodetic engineering at Bandung Institute of Technology - Indonesia. Currently, I'm finishing my final project concerning digital orthophoto generation based on DTM (Digital Terrain Model). Since my references are very limited, my work goes slowly. Here, I could hardly find some resources for my assignment and the economic turmoil that we face worsen the situation. Could anyone of you name some URL or papers that I can acces on the internet ?. Some pointers and books would help me a lot as well. Any help and assistance would be greatly appreciated. Thanks in advance -Dik Priadin-