Correlation table of the tree-ring series of the different chronologies (group 1 -4) of Revine. Marked green are the series which significantly cross date with each other following the threshold of tBP > 5,0; GLK > 60. Internal statistical properties of the single trees of the different chronologies (left: sign test as %; right: TBaillie&Pilcher ). T-values >5 are statistical significant.