HDF AND HDF-EOS WORKSHOP II (1998) Sources: http://hdfeos.org/workshops/ws02/presentations/gubbels/gubbels1.ppt http://hdfeos.org/workshops/ws02/presentations/gubbels/gubbels2.ppt http://hdfeos.org/workshops/ws02/presentations/gubbels/gubbels3.ppt http://hdfeos.org/workshops/ws02/presentations/gubbels/gubbels4.ppt