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Christoph Helsper (29)
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Fachbereich Energietechnik (29)
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Intercomparison of Eleven Condensation Nucleus Counters / Dreiling, V. ; Haller, P. ; Helsper, C.; Kaminski, U. ; Plomp, A. ; Raes, F. ; Roth, C. ; Schier, J. ; Schürmann, G.
(1986)
Christoph Helsper
;
V. Dreiling
;
P. Haller
;
U. Kaminski
Response Characteristics for Four Condensation Nucleus Counters to Particles in the 3 to 50 nm Diameter Range / Bartz, H. ; Fißan, H. J. ; Helsper, C.; Kousaka, Y. ; Okuyama, K. ; Keady, R. Fruin, S. ; McMurry, P. H.; Pui, D. Y. H. ; Stolzenburg, M. R.
(1985)
Christoph Helsper
;
H. Bartz
;
H. J. Fißan
;
Y. (u.a.) Kousaka
Evaluation of Particle Size Distributions by Means of Particle Counters / Fißan, H. J. ; Helsper, C.
(1979)
Christoph Helsper
Measurement Techniques For Ultrafine Particles
(1986)
Christoph Helsper
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