Holländer, W.W.HolländerSchörmann, J.J.SchörmannSchumann, G.G.Schumann2022-03-022022-03-021979https://publica.fraunhofer.de/handle/publica/16910310.1016/0004-6981(79)90204-Xen570610620660628Improvement of measuring efficiency of condensation nuclei counters by modification of illuminationjournal article