Tree-ring formation, radial increment and climate–growth relationship: assessing two potential tree species used in Brazilian Atlantic forest restoration projects | SpringerLink
Tree Rings and Climate | Center for Science Education
Age and weather effects on between and within ring variations of number, width and coarseness of tracheids and radial growth of young Norway spruce | SpringerLink
Age and weather effects on between and within ring variations of number, width and coarseness of tracheids and radial growth of young Norway spruce | SpringerLink
Determining a Tree's Age Range by Counting Growth Rings – TxHTC
Statistical age determination of tree rings | PLOS ONE
More on growth rings and density - Centre for Wood Science & Technology