Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text R. Winston and W. T. Welford, "Geometrical vector flux and some new nonimaging concentrators," J. Opt. Soc. Am. 69, 532-536 (1979) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
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Winston et al. (1979) studied this question.
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