@inproceedings{93fdbe41cfdf4a34af864ee36bc95cea,
title = "Methods for invisible coding of paper",
author = "E. Kyt{\"o} and P. Eskolin and T.R. Nyberg",
note = "ISBN 83-911382-2-4<br/>Contribution: organisation=aci,FACT1=1",
year = "1999",
language = "English",
isbn = "83-911382-2-4",
pages = "VI11--VI15",
booktitle = "XIII International Papermaking Conference Progress'99, Papermaking and Paper Converting in Central and Eastern Europe- towards a unified Europe, 22-24 September 1999, Cracow, Poland",
}