%0 Research Notes %T Preliminary estimate of long-term carbon accumulation and loss in 25 boreal peatlands %A Tolonen, Kimmo %A Vasander, Harri %A Damman, Antoni %A Clymo, R. %D 1992 %J Suo - Mires and peat %V 43 %N 4-5 %U http://www.suo.fi/article/9721 %X