- Dynamics of phytoplankton pigments in water and surface sediments of a large shallow lakeFreiberg, Rene; Nõmm, Monika; Tõnno, Ilmar; Alliksaar, Tiiu; Nõges, Tiina; Kisand, AnuEstonian journal of earth sciences2011 / 2, p. 91-101 : ill https://artiklid.elnet.ee/record=b2414184*est