1 \begin{thebibliography}{Lam86}
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3 \bibitem[Knu84]{texbook}
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5 \newblock {\em The {{\TeX}book}}.
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6 \newblock Addison-Wesley, 1984.
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8 \bibitem[Lam86]{latex}
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10 \newblock {\em {\LaTeX \rm:} {A} Document Preparation System}.
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11 \newblock Addison-Wesley, 1986.
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13 \end{thebibliography}
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