@techreport{4ce438234d214897b319652dce41ada0,
title = "Pollution from ducts; what is the reason, how to measure it and how to prevent it ?",
keywords = "cleanliness, contamination, criteria, duct, dust, maintenence, oil residue, cleanliness, contamination, criteria, duct, dust, maintenence, oil residue, cleanliness, contamination, criteria, duct, dust, maintenence, oil residue",
author = "Marko Bj{\"o}rkroth and B. Muller and V. Kuchen and P.M. Bluyssen",
year = "2000",
language = "English",
series = "Healthy Buildings, Espoo, August 6-10, 2000",
pages = "163--168",
type = "WorkingPaper",
}