@proceedings {645,
	title = {Evidences of Cycles in Tree Ring Records},
	year = {1933},
	note = {This is available as a physical and electronic copy through the Tree Ring Lab. Please contact the curator for more information. pcreasman@ltrr.arizona.edu},
	keywords = {address, cycles, Douglass, evidence, historic, proceedings of the national academy of science, record, tree ring},
	author = {Douglass, A.E.}
}
@proceedings {738,
	title = {Dendrochronology and Studies in Cyclics},
	keywords = {conference, cycles, cyclics, dendrochronology, Douglass, historic},
	author = {Douglass, A.E.}
}
