000 00370pam a2200157a 44500
008 230515b1997 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGL
082 _a621.361/ LOE
100 _aLOEWEN E.G.POPOV E.
245 _aDIFFRACTION GRATINGS AND APPLICATIONS
250 _aN.D.
260 _aNULL
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300 _a601 HB
650 _aNULL
999 _c633672
_d633672