R. Heikkilä

Status and restoration of peatlands in northern Europe

E. Tuittila, J. Laine, L. Lundin, 2003, Wetlands Ecology and Management.

Effect of type of forage offered and breed on performance of crossbred suckler heifers and their calves

M. Puntila, M. Manninen, I. Aronen, 1998 .