A first [delta]18O record from conodont apatite across the Lower Silurian Ireviken Event in EstoniaLechnert, O.; Männik, Peep; Joachimski, Michael M.; Buggisch, W.The Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 41 [delta]13C record of the Upper Ordovician succession of the Borenshult-1 core (Motala, Sweden) and its intracontinental correlationLechnert, O.; Calner, M.; Joachimski, Michael M.; Buggisch, W.; Nõlvak, JaakThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 40