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024 _a37981
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aC84:(B91), L8
100 _aWelford W T
245 0 _aOptics of nonimaging concentratoes: light and solar energy
260 _c1978
300 _ap.
_ccm.
650 _a Physics
650 _aEnergy
700 _a Winston R
942 _hC84:(B91), L8
_cTEXL
_2CC
999 _c90240
_d90240