Derek Ratcliffe (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Derek Ratcliffe" in English language version.

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4doi.org

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3harvard.edu

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2calvin.edu

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2nih.gov

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1worldcat.org

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1theguardian.com

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1semanticscholar.org

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bto.org (Global: low place; English: low place)

"Medallists". BTO. 2 June 2006. Retrieved 1 December 2008.

calvin.edu (Global: 9,834^th place; English: 6,399^th place)

Ratcliffe, D. A. (1970). "Changes Attributable to Pesticides in Egg Breakage Frequency and Eggshell Thickness in some British Birds" (PDF). Journal of Applied Ecology. 7 (1): 67–115. Bibcode:1970JApEc...7...67R. doi:10.2307/2401613. JSTOR 2401613.
Marquiss, M.; Newton, I.; Ratcliffe, D. A. (1978). "The Decline of the Raven, Coruvs Corax, in Relation to Afforestation in Southern Scotland and Northern England" (PDF). Journal of Applied Ecology. 15 (1): 129–144. Bibcode:1978JApEc..15..129M. doi:10.2307/2402925. JSTOR 2402925.

doi.org (Global: 2^nd place; English: 2^nd place)

Ratcliffe, D. A. (1970). "Changes Attributable to Pesticides in Egg Breakage Frequency and Eggshell Thickness in some British Birds" (PDF). Journal of Applied Ecology. 7 (1): 67–115. Bibcode:1970JApEc...7...67R. doi:10.2307/2401613. JSTOR 2401613.
Ratcliffe, DA (1967). "Decrease in eggshell weight in certain birds of prey". Nature. 215 (5097): 208–10. Bibcode:1967Natur.215..208R. doi:10.1038/215208a0. PMID 6049131. S2CID 4175038.
Marquiss, M.; Newton, I.; Ratcliffe, D. A. (1978). "The Decline of the Raven, Coruvs Corax, in Relation to Afforestation in Southern Scotland and Northern England" (PDF). Journal of Applied Ecology. 15 (1): 129–144. Bibcode:1978JApEc..15..129M. doi:10.2307/2402925. JSTOR 2402925.
Burnham, William A.; Enderson, James H.; Boardman, Thomas J. (1984). "Variation in Peregrine Falcon Eggs" (PDF). The Auk. 101 (3): 578–583. doi:10.1093/auk/101.3.578.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Ratcliffe, D. A. (1970). "Changes Attributable to Pesticides in Egg Breakage Frequency and Eggshell Thickness in some British Birds" (PDF). Journal of Applied Ecology. 7 (1): 67–115. Bibcode:1970JApEc...7...67R. doi:10.2307/2401613. JSTOR 2401613.
Ratcliffe, DA (1967). "Decrease in eggshell weight in certain birds of prey". Nature. 215 (5097): 208–10. Bibcode:1967Natur.215..208R. doi:10.1038/215208a0. PMID 6049131. S2CID 4175038.
Marquiss, M.; Newton, I.; Ratcliffe, D. A. (1978). "The Decline of the Raven, Coruvs Corax, in Relation to Afforestation in Southern Scotland and Northern England" (PDF). Journal of Applied Ecology. 15 (1): 129–144. Bibcode:1978JApEc..15..129M. doi:10.2307/2402925. JSTOR 2402925.

jstor.org (Global: 26^th place; English: 20^th place)

Ratcliffe, D. A. (1970). "Changes Attributable to Pesticides in Egg Breakage Frequency and Eggshell Thickness in some British Birds" (PDF). Journal of Applied Ecology. 7 (1): 67–115. Bibcode:1970JApEc...7...67R. doi:10.2307/2401613. JSTOR 2401613.
Marquiss, M.; Newton, I.; Ratcliffe, D. A. (1978). "The Decline of the Raven, Coruvs Corax, in Relation to Afforestation in Southern Scotland and Northern England" (PDF). Journal of Applied Ecology. 15 (1): 129–144. Bibcode:1978JApEc..15..129M. doi:10.2307/2402925. JSTOR 2402925.

nih.gov (Global: 4^th place; English: 4^th place)

pubmed.ncbi.nlm.nih.gov

Ratcliffe, DA (1967). "Decrease in eggshell weight in certain birds of prey". Nature. 215 (5097): 208–10. Bibcode:1967Natur.215..208R. doi:10.1038/215208a0. PMID 6049131. S2CID 4175038.
Ratcliffe, DA (1973). "Studies of the recent breeding success of the peregrine, Falco peregrinus". Journal of Reproduction and Fertility. Supplement. 19: 377–89. PMID 4522385.

semanticscholar.org (Global: 11^th place; English: 8^th place)

api.semanticscholar.org

Ratcliffe, DA (1967). "Decrease in eggshell weight in certain birds of prey". Nature. 215 (5097): 208–10. Bibcode:1967Natur.215..208R. doi:10.1038/215208a0. PMID 6049131. S2CID 4175038.

theguardian.com (Global: 12^th place; English: 11^th place)

Thompson, Des (30 May 2005). "Obituary: Derek Ratcliffe". the Guardian. Retrieved 29 December 2020.

unm.edu (Global: 2,007^th place; English: 1,298^th place)

sora.unm.edu

Burnham, William A.; Enderson, James H.; Boardman, Thomas J. (1984). "Variation in Peregrine Falcon Eggs" (PDF). The Auk. 101 (3): 578–583. doi:10.1093/auk/101.3.578.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Obituary, Des Thompson & H.J.B. Birks British Wildlife Vol. 16 No.6 pp. 410–412, August 2005 ISSN 0958-0956

Derek Ratcliffe (English Wikipedia)

bto.org (Global: low place; English: low place)

calvin.edu (Global: 9,834th place; English: 6,399th place)

doi.org (Global: 2nd place; English: 2nd place)

harvard.edu (Global: 18th place; English: 17th place)