TY - JOUR A1 - Hardt, Arno A1 - Martin, S. A1 - Meißburger, J. A1 - Retz, R. A1 - Wimmer, J. T1 - The cryopump system of the QQDDQ magnet spectrometer BIG KARL JF - Vacuum. Vol. 28, iss. 10-11 Y1 - 1978 SN - 1879-2715 (E-Journal); 0042-207X (Print) SP - 483 ER - TY - JOUR A1 - Helsper, Christoph T1 - Particle Size Distributions of Combustion Aerosols / Fißan, H.J.; Franzen, H.; Helsper, C. JF - Atmospheric pollution 1978 : proceedings of the 13. International Colloquium, UNESCO Building, Paris, France, April 25-28, 1978 / ed. by Michel M. Benarie. Y1 - 1978 SN - 0-444-41691-9 N1 - Studies in environmental science ; 1; International Colloquium on Atmospheric Pollution <13, 1978, Paris> PB - Elsevier CY - Amsterdam [u.a.] ER -