\begin{thebibliography}{35}
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  \providecommand{\doi}{doi:\discretionary{}{}{}\begingroup
  \urlstyle{rm}\Url}\fi
\providecommand{\eprint}[2][]{\url{#2}}

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\bibitem[{Parker et~al.(2004)Parker, Kent, Woodruff, Dehenauw, Harrison,
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Rayner, N., P.~Brohan, D.~E. Parker, C.~K. Folland, J.~Kennedy, M.~Vanicek,
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\bibitem[{Wheeler(2001)}]{wheeler01trafalgar}
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\bibitem[{Wheeler(2004)}]{wheeler04usl}
---{}---{}---, 2004: Undestanding seventeenth century ships' logbooks.
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\bibitem[{Wheeler(2005)}]{wheeler05logbook}
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\bibitem[{Wheeler(2007)}]{wheeler07arctic}
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\bibitem[{Willett(2007)}]{willett07phd}
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\bibitem[{Woodruff(2007)}]{woodruff07imma}
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\end{thebibliography}