{\rtf1\ansi\deff0\deftab360 {\fonttbl {\f0\fswiss\fcharset0 Arial} {\f1\froman\fcharset0 Times New Roman} {\f2\fswiss\fcharset0 Verdana} {\f3\froman\fcharset2 Symbol} } {\colortbl; \red0\green0\blue0; } {\info {\author Biblio 7.x}{\operator }{\title Biblio RTF Export}} \f1\fs24 \paperw11907\paperh16839 \pgncont\pgndec\pgnstarts1\pgnrestart St\'f6hr, M, Garbe, C S, Engelmann, D, Gei\'dfler, P, Gomes, S, Hering, F, J\'e4hne, B, Keil, F, Mackens, W, Vo\'df, H and Wagner, H - G (1999). 4D particle tracking velocimetry applied to gas-liquid reactors. In Scientific Computing in Chemical Engineering II - Simulation, Image Processing, Optimization and Control. Springer Verlag. 270--279\par \par }