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\begin{document}
В \cite{rie98,per99,rie04}
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\begin{thebibliography}{00}
\item[\textbf{Усякий непотріб}]
\bibitem{rie98}
A. G. Riess et al., Astron. J. 116, 1009 (1998).
\bibitem{per99}
S. Perlmutter et al., Astrophys. J. 517, 565 (1999).
\bibitem{rie04}
A. G. Riess et al., Astrophys. J. 607, 665 (2004).
\item[\textbf{Інша фігня}]
\bibitem{chim04}
L. P. Chimento, Phys. Rev. D 69, 123517 (2004).
\bibitem{sch04}
R. J. Scherrer, Phys. Rev. Lett. 93, 011301 (2004);
\bibitem{sen}
A. A. Sen and R. J. Scherrer, Phys. Rev. D 72, 063511 (2005).
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