Müller, K., L. Giani & L. Makowsky (2013): Plaggenesch, Soil of the Year 2013: Regional examples from the Oldenburg and Osnabrück regions - Drosera 2011: 1-10

Becker, R. (2013): Dynamics and constancy of ditch vegetation in the "Bornhorster Huntewiesen" (city of Oldenburg, Oldb.) between 1982 and 2010 - Drosera 2011: 11-34

Wolff, D. (2013): Robber fly findings (Diptera Aslidae from north-east Lower Saxony - Drosera 2011: 33-58

Renner, K. (2013): New and re-findings of beetle species (Coleoptera) from northern Germany - Droesera 2011: 59-61

Fuhrmann, K. (2013): The distribution of the Narrow-leaved Hedgehog (Sparganium angustifolium) in the heathlands of north-west Germany, the Netherlands and Belgium. Drosera 2011: 63-79

Heinecke, C., F. Kastner & E. Fresse (2013): The large butterflies (Macrolepidoptera) of the moors of Oldenburg (Germany, Lower Saxony)-Preparation of a long-term study and first results - Drosera 2011: 81-97

Wegner, H. (2013): Addendum to the small butterfly fauna (Lepidoptera) on the North Frisian island of Sylt - Drosera 2011: 99-105

Weber, H. E. (2013): Nomenclature and taxonomy of two blackberry species related to the foxberry (Rubus nessensis Hall) - Drosera 2011: 107-110

Kastner, F. & R. Buchwald (2013): On the occurrence of the FFH dragonfly species Coenagrion mercuriale Charpentier, 1840 and Coenagrion ornatum Selys 1850 (Odonata: Coenagrionidae) in the district of Minden-Lübbecke (North Rhine-Westphalia) - Drosera 2011: 111-118

Wagner, H. - G. (2013): Finds of remarkable lichens, lichenicolous and lichen-like fungi in Lower Saxony - a call for the targeted recording of little recognised ecological and systematic groups - Drosera 2011: 119-126