Correlation of Telychian (Silurian) altered volcanic ash beds in Estonia, Sweden and NorwayKiipli, Tarmo; Männik, Peep; Batchelor, Richard A.; Kiipli, Enli; Kallaste, Toivo; Perens, H.Norwegian journal of geology2001 / 3, p. 179-193

Correlation of Telychian (Silurian) metabentonites in EstoniaKiipli, Tarmo; Männik, Peep; Batchelor, Richard A.; Kiipli, Enli; Kallaste, Toivo; Perens, H.The Fourth Baltic Stratigraphical Conference : Problems and Methods of Modern Regional Stratigraphy : A joint BSA and IGCP 406 meeting : Jurmala, Latvia, Sept.-Oct. 1999 : abstracts1999 / p. 45-46