@misc{HofmannLessmann, author = {Hofmann, Hilmar and Lessmann, Dieter}, title = {Hydrogeochemistry of groundwater seepage into an acidic mining lake}, series = {Verhandlungen, International Association of Theoretical and Applied Limnology}, volume = {29}, journal = {Verhandlungen, International Association of Theoretical and Applied Limnology}, number = {3}, issn = {0368-0770}, pages = {1452 -- 1456}, language = {en} } @misc{LessmannHofmannBeulkeretal., author = {Lessmann, Dieter and Hofmann, Hilmar and Beulker, Camilla and Nixdorf, Brigitte}, title = {Effects of winter temperature on phytoplankton development in acidic mining lakes}, series = {Verhandlungen, International Association of Theoretical and Applied Limnology}, volume = {29}, journal = {Verhandlungen, International Association of Theoretical and Applied Limnology}, number = {3}, issn = {0368-0770}, pages = {1423 -- 1426}, language = {en} }