Could be that I have some old A4 sheets here that I could compare to the maybe 50 textured samples of other papers. Could be that I thrown them away some weeks ago when Hawk Mountain announced its closure. I did a search but they did not appear, sometimes I have to rely on the accidental find :-)
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Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm450+ inkjet paper white spectral plots, November 2012:
rearranged categories, still adding Photokina paper samples.