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Mailahn W, Seifert B, Ullrich D.
Bibliographic info:
in: Indoor Air'87, Proceedings of the 4th International Conference on Indoor Air Quality and Climate, Berlin (West), 17-21 August 1987, Vol 1, Institute for Water, Soil and Air Hygiene, 1987, p149-153, 3 figs, 2 tabs, 7 refs.