@misc{wilken_estimation_of_1988, 
author={Wilken, R.-D.,Diehl, R.},
title={Estimation of Sr-90 and Cs-137 inputs from the Elbe into the North Sea before and after the Chernobyl accident},
year={1988},
howpublished = {conference lecture: Quebec (CDN); October 10-14, 1988},
note = {Online available at: \url{} (DOI). Wilken, R.; Diehl, R.: Estimation of Sr-90 and Cs-137 inputs from the Elbe into the North Sea before and after the Chernobyl accident. International Symposium on the Fate and Effects of Toxic Chemicals in Large Rivers and their Estuaries. Quebec (CDN), 1988.}}