Cropper, John Philip. 1985. ?Tree-Ring Response Functions: An Evaluation By Means Of Stimulations?. Geoscience. Geoscience. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=753282251&sid=28&Fmt=2&clientId=43922&RQT=309&VName=PQD.