@misc{jahnke_laser_fluorometer_1990, 
author={Jahnke, J., Michaelis, W.},
title={Laser fluorometer for the detection of Rhodamine-B in estuarine waters},
year={1990},
howpublished = {book part},
note = {Jahnke, J.; Michaelis, W.: Laser fluorometer for the detection of Rhodamine-B in estuarine waters. In: Michaelis, W. (Ed.): Estuarine water quality management: monitoring, modelling and research - Coastal and estuarine studies. Berlin: Springer. 1990. 225-228.}}