LITERATURE 
Mulder, N.J. and 
S.A. Hempenius 
Hempenius, S.A. 
"Data Compression and Data Reduction Techniques 
for the Visual Interpretation of Multispectral 
Images" ITC Journal 1973-3. 
"The ITC 8-image Caroussel Comparator and its 
possible use in ERTS and EREP investigations" 
ITC-Journal 1974-2.