1. 1
    Published 1981
    ...Applied optics....
    Serial
  2. 2
    Published 1998
    ...Proceedings of SPIE--the International Society for Optical Engineering ;...
    Conference Proceeding Book
  3. 3
    Published 1991
    ...D, Atomic, molecular, and optical physics...
    Journal
  4. 4
    Published 1945
    ...B, Physics of condensed matter, electronic, optical and magnetic properties...
    Journal
  5. 5
    Published 2003
    ...Indirect measurement of forest canopy structure from in situ optical sensors /...
    Book
  6. 6
    Published 2009
    ...Colorimetric techniques, optical equipment and consumer electronics --...
    Table of contents
    Book