Ciesla, William M.
,
Donaubauer, Edwin
,
[Decline and dieback of trees and forests. A global overview]
,
Decline and dieback of trees and forests. A global overview
Cramer, H.H.
,
Cramer-Middendorf, M.
,
[Studies on the relatioships between periods of damage and factors of climate in the Middle European forests since 1851]
,
Studies on the relatioships between periods of damage and factors of climate in the Middle European forests since 1851