Assessment of water quality in a large lowland river (Narva, Estonia-Russia) using a new Hungarian potamoplanktic method, Kai Piirsoo, Peeter Pall, Arvo Tuvikene, Malle Viik, Sirje VilbasteLinking diatom community dynamics to changes in terrestrial vegetation: a palaeolimnological case study of Lake Ķūži, Vidzeme Heights (Central Latvia), Liisa Puusepp, Mihkel Kangur
On the Estonian fauna of Harpacticoida (Crustacea, Copepoda), Elena Fefilova
A new species of the genus Dirphia (Lepidoptera: Saturniidae, Hemileucinae) from Ecuador, Stefan Naumann, Aare Lindt, Jaan Viidalepp
Adaptation of a method for involving environmental aspects in spatial planning of river basin management – a case study of the Narva River basin, Kristjan Piirimäe, Karin Pachel, Alvina Reihan
