Lahl U.: Controlling and eliminating ozone depleting compounds from the view of a municipal administration in the FRG. United Nations: The World Congress of Local Governments for a Sustainable Future, New York, 5.-8.9.1990
Fabarius G., Wilken M., Borgas M., Zeschmar-Lahl B.: Release of organic pollutants during accidental fires. Lecture, DIOXIN’90, Bayreuth, and: Organohalogen Compounds 3, 373-376, 1990
Zeschmar-Lahl B., Wilken M., Jager J., Lahl U.: PCDD/PCDF balance of different municipal waste management methods. V. Comparison and results. Lecture, DIOXIN’90, Bayreuth, and: Organohalogen Compounds 4, 343-346, 1990
Borgas M., Wilken M., Zeschmar-Lahl B., Jager J.: PCDD/PCDF balance of different municipal waste management methods. IV. Recycling. Poster, DIOXIN’90, Bayreuth, and: Organohalogen Compounds 4, 339-342, 1990
Wilken M., Neugebauer F., Zeschmar-Lahl B., Jager J.: PCDD/PCDF balance of different municipal waste management methods. III. Composting. Poster, DIOXIN’90, Bayreuth, and: Organohalogen Compounds 4, 335-338, 1990
Mueller U., Hoer B., Zeschmar-Lahl B., Wilken M., Jager J.: PCDD/PCDF balance of different municipal waste management methods. II. Waste disposal and disposal gas incineration. Poster, DIOXIN’90, Bayreuth, and: Organohalogen Compounds 4, 331-334, 1990
Lahl U., Wilken M., Zeschmar-Lahl B., Jager J.: PCDD/PCDF balance of different municipal waste management methods. I. Municipal waste incinerators (MWI). Poster, DIOXIN’90, Bayreuth, and: Organohalogen Compounds 4, 327-330, 1990
Zeschmar-Lahl B.: Farben, Lacke, Holzschutzmittel und Klebstoffe. Fernlehrbrief 17 zum Fernlehrgang Umweltberatung.
Zeschmar-Lahl B.: Wasch-, Putz- und Reinigungsmittel. Fernlehrbrief 19 zum Fernlehrgang Umweltberatung.
Hrsg.: Stiftung Verbraucherinstitut Berlin und Bund für Umwelt und Naturschutz e.V. (BUND), Bonn, 1991
Zeschmar-Lahl B.: Facette der Chlorchemie (III). Müllmagazin 4, 55-60, 1991
Böske J., Ehmann J., Kurz R., Lahl U.: PCDD/PCDF immission by a municipal waste incinerator – results of a luff/lee study. Poster P 101, DIOXIN’91, Chapel Hill, North Carolina, September 1991