Fine-scale pattern of the decomposition, compaction and accumulation of organic matter in Sphagnum hummocks (Nigula bog, SW Estonia)Blinova, Irina; Ilomets, M.; Lukjanova, A.; Treumann, Maili; Viitak, AnuProc. 12th International Peat Congress : Tampere, Finland, 6-11 June, 20042004 / p. 972-976