Akkumulation von Metallen und Stickstoff in Moosen in Nordrhein-Westfalen 1990 – 2005 (Accumulation of metals and nitrogen in mosses in North Rhine-Westfalia 1990–2005)
Schröder Winfried, Pesch Roland, Holy Marcel, Genßler Lutz, Harmens Harry, Ilyin, Ilyin Ilia