1
WMO region VI conference on the measurement and modelling of atmospheric composition changes including pollution transport: extended abstracts of papers : Sofiya, 04.10.93-08.10.93.
Book
2
Ozone in the atmosphere : proceedings of the 1988 Quadrennial Ozone Symposium : tropospheric ozone workshop : proceedings Göttingen, 04.08.88-13.08.88 Edited by Rumen D. Bojkov ...
Book