N. Bonde et Ae. Christensen, DENDROCHRONOLOGICAL DATING OF THE VIKING AGE SHIP BURIALS AT OSEBERG,GOKSTAD AND TUNE, NORWAY, Antiquity, 67(256), 1993, pp. 575-583
Dendrochronology now provides a date, exact nearly to the year, for th
ree Viking Age burial mounds of special importance for chronology in S
candinavia and across early medieval northern Europe. Their dating use
d to depend on the style of the carved wooden artefacts in the grave g
oods; now the grave-goods are exactly and independently dated by the t
ree-rings, those same links will provide doting bridges across the Vik
ing world.