@inbook {stoehr1999, title = {4D particle tracking velocimetry applied to gas-liquid reactors}, booktitle = {In Scientific Computing in Chemical Engineering II - Simulation, Image Processing, Optimization and Control.}, year = {1999}, pages = {270--279}, publisher = {Springer Verlag}, organization = {Springer Verlag}, author = {M. St{\"o}hr and Christoph S. Garbe and D. Engelmann and Peter Gei{\ss}ler and Gomes, S. and Frank Hering and Bernd J{\"a}hne and F. Keil and W. Mackens and H. Vo{\ss} and Wagner, H.-G..}, editor = {J. Werther} }