• The X-Ray Technique as Applied to Dendroclimatology

      Schweingruber, F. H.; Fritts, H. C.; Bräker, O. U.; Drew, L. G.; Schär, E.; Eidgenössische Anstalt, für das forstliche Versuchswesen, Birmensdorf, Switzerland; Laboratory of Tree-Ring Research, The University of Arizona (Tree-Ring Society, 1978)