\begin{thebibliography}{5}
\expandafter\ifx\csname natexlab\endcsname\relax\def\natexlab#1{#1}\fi
\expandafter\ifx\csname bibnamefont\endcsname\relax
  \def\bibnamefont#1{#1}\fi
\expandafter\ifx\csname bibfnamefont\endcsname\relax
  \def\bibfnamefont#1{#1}\fi
\expandafter\ifx\csname citenamefont\endcsname\relax
  \def\citenamefont#1{#1}\fi
\expandafter\ifx\csname url\endcsname\relax
  \def\url#1{\texttt{#1}}\fi
\expandafter\ifx\csname urlprefix\endcsname\relax\def\urlprefix{URL }\fi
\providecommand{\bibinfo}[2]{#2}
\providecommand{\eprint}[2][]{\url{#2}}

\bibitem[{\citenamefont{Kuhn}(1969)}]{kuhn1969}
\bibinfo{author}{\bibfnamefont{H.}~\bibnamefont{Kuhn}},
  \emph{\bibinfo{title}{Atomic Spectra}} (\bibinfo{publisher}{Academic Press},
  \bibinfo{year}{1969}).

\bibitem[{mon()}]{monochromator}
\bibinfo{howpublished}{\url{http://en.wikipedia.org/wiki/Monochromator}}.

\bibitem[{\citenamefont{Industries}()}]{monochromator_manual}
\bibinfo{author}{\bibfnamefont{S.}~\bibnamefont{Industries}},
  \emph{\bibinfo{title}{M-series spectrometers}}.

\bibitem[{\citenamefont{NIST}()}]{nist_tables}
\bibinfo{author}{\bibnamefont{NIST}}, \emph{\bibinfo{title}{1998 codata
  recommended values of the fundamental constants of physics and chemistry}}.

\bibitem[{\citenamefont{Melissinos}(1966)}]{melissinos1966}
\bibinfo{author}{\bibfnamefont{A.}~\bibnamefont{Melissinos}},
  \emph{\bibinfo{title}{Experiments in Modern Physics}}
  (\bibinfo{publisher}{Academic Press}, \bibinfo{year}{1966}).

\end{thebibliography}
