A comparison of the palaeolimnology of Peipsi and Võrtsjärv: connected shallow lakes in north-eastern Europe for the twentieth century, especially in relation to eutrophication progression and water-level fluctuationsLeeben, Aina; Freiberg, Rene; Tõnno, Ilmar; Kõiv, Toomas; Alliksaar, Tiiu; Heinsalu, AtkoHydrobiologia2013 / p. 227-240 : ill https://doi.org/10.1007/s10750-012-1209-7 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Ecosystem changes in large and shallow Võrtsjärv, a lake in Estonia - evidence from sediment pigments and phosphorus fractionsTõnno, Ilmar; Kirsi, Anna-Liisa; Freiberg, Rene; Alliksaar, Tiiu; Lepane, Viia; Kõiv, Toomas; Kisand, Anu; Heinsalu, AtkoBoreal environment research2013 / p. 195-208 : ill https://www.semanticscholar.org/paper/Ecosystem-changes-in-large-and-shallow-V%C3%B5rtsj%C3%A4rv%2C-a-T%C3%B5nno-Kirsi/1b6537bb746d1efabb83b1db1529b453fa231138 Journal metrics at Scopus Article at Scopus