@article{BaumannJahnke1983,
  author    = {Baumann, Marcus and Jahnke, J.},
  title     = {Chemical and Physical Effects on the Shape and Growth of the Diatom Biddulphia sinensis GREVILLE in Batch Cultures: A Contribution to Bioindication in Plankton Ecology / Jahnke, J. ; Baumann, M.},
  series = {Hydrobiological Bulletin . 17 (1983), H. 1},
  journal   = {Hydrobiological Bulletin . 17 (1983), H. 1},
  isbn      = {0165-1404},
  pages     = {5 -- 20},
  year      = {1983},
  language  = {en}
}
@article{JahnkeBaumann1987,
  author    = {Jahnke, J. and Baumann, Marcus},
  title     = {Differentiation between Phaeocystis pouchetii (Har.) Lagerheim and Phaeocystis globosa Scherffel},
  series = {Hydrobiological bulletin},
  volume    = {Vol. 21},
  journal   = {Hydrobiological bulletin},
  number    = {Iss. 2},
  issn      = {0165-1404 (Print); 1573-5125 (E-Journal)},
  pages     = {141 -- 147},
  year      = {1987},
  language  = {en}
}