@article {Ruhnau-Schnoerr-EiF07,
	title = {Optical Stokes Flow Estimation: An Imaging-Based Control Approach},
	journal = {Exp. in Fluids},
	volume = {42},
	year = {2007},
	pages = {61{\textendash}78},
	author = {Ruhnau, P. and Schn{\"o}rr, C.}
}
