@incollection{siebers1999hapa, author={D {Siebers} and R {Weidel} and Wolfgang {Hickel}}, title={{Hydrochemistry and phytoplankton abundance at time series station Helgoland Roads, North Sea, in 1987}}, year={1999}, doi={10.1594/PANGAEA.55846}, url={https://doi.org/10.1594/PANGAEA.55846}, note={In: Wiltshire, Karen Helen; Carstens, Kristine; Ecker, Ursula; Kirstein, Inga V: Hydrochemistry at time series station Helgoland Roads, North Sea since 1873. Alfred Wegener Institute - Biological Institute Helgoland, PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.960375 (dataset in review)}, type={data set}, publisher={PANGAEA} }