http://dewey.info/scheme/edition/e23/ en
535.8 Special developments of light and related radiation
535.84 Optical, infrared, ultraviolet spectroscopy
535.842 Infrared spectroscopy 535.843 Light spectroscopy 535.844 Ultraviolet spectroscopy 535.845 Vacuum ultraviolet spectroscopy 535.846 Raman spectroscopy
http://dewey.info/scheme/edition/e22/ de
535.8 Spezielle Entwicklungen von Licht und Infrarot- und Ultraviolett-Phänomenen
535.84 Optische Spektroskopie, Infrarot-, Ultraviolettspektroskopie
535.842 Infrarotspektroskopie 535.843 Lichtspektroskopie 535.844 Ultraviolettspektroskopie 535.845 Vakuum-Ultraviolettspektroskopie 535.846 Raman-Spektroskopie
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