• Reconstruction of organic carbon sources in the palaeoenvironment of a lake : an optical approachLeeben, Aina; Alliksaar, Tiiu; Heinsalu, Atko; Lepane, Viia; Salujõe, Jaana; Veski, SiimThe 23rd International Meeting on Organic Geochemistry (IMOG2007) : Torquay, England, 9-14 September 20072007 / p. 1051-1052