@misc{johnson_investigation_into_1991, 
author={Johnson, H. K., Hinrichsen, H., Rudolph, E., Wang, Z. B.},
title={Investigation into the effect of an improved wind model on water levels and currents: Progress Report on the Wadden Sea Project (WASP)},
year={1991},
howpublished = {report},
note = {Johnson, H.; Hinrichsen, H.; Rudolph, E.; Wang, Z.: Investigation into the effect of an improved wind model on water levels and currents: Progress Report on the Wadden Sea Project (WASP). 1991.}}