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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1960 1
1979 1
1981 1
1984 1
2013 1
2021 0
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Page 1
Ecology and other subjects.
Frey DG. Frey DG. Science. 1979 Sep 28;205(4413):1368-9. doi: 10.1126/science.205.4413.1368. Science. 1979. PMID: 17732323 No abstract available.
Late quaternary environmental history of lake valencia, Venezuela.
Bradbury JP, Leyden B, Salgado-Labouriau M, Lewis WM Jr, Schubert C, Binford MW, Frey DG, Whitehead DR, Weibezahn FH. Bradbury JP, et al. Among authors: frey dg. Science. 1981 Dec 18;214(4527):1299-305. doi: 10.1126/science.214.4527.1299. Science. 1981. PMID: 17812244