Schmid, H.-J., Veith, S., &; Umhauer, H. (2002). In-Situ Measurement of Local Particle Flux Densities in a Complex Two-Phase Flow. Particle &; Particle Systems Characterization, 19(3), Article 203.https://doi.org/10.1002/1521-4117(200207)19:3&#60;203::aid-ppsc203&#62;3.0.co;2-7