TY - CHAP A1 - Müller, Felix A1 - Gnauck, Albrecht A1 - Wenkel, Karl-Otto A1 - Schubert, Hendrik A1 - Bredemeier, Michael T1 - Theoretical Demands for Long-Term Ecological Research and the Management of Long-Term Data Sets Y1 - 2010 ER - TY - GEN A1 - Wälder, Konrad A1 - Frischbier, Nico A1 - Bredemeier, Michael A1 - Näther, Wolfgang A1 - Wagner, Sven T1 - Analysis of OF – layer humus mass variation in a mixed stand of European beech and Norway spruce: An application of structural equation modelling T2 - Ecological Modelling Y1 - 2008 SN - 0304-3800 VL - 213 IS - 3-4 SP - 319 EP - 330 ER -