J.  Wuyts, Van de Peer, Y., Winkelmans, T., and De Wachter, R., ?The European database on small subunit ribosomal RNA?, Nucleic Acids Research, vol. 30, pp. 183-185, 2002.

J.  Wuyts, De Rijk, P., Van de Peer, Y., Winkelmans, T., and De Wachter, R., ?The European large subunit ribosomal RNA database?, Nucleic Acids Research, vol. 29, pp. 175-177, 2001.

D.  Wells and Brown, D., ?Histone and histone gene compilation and alignment update?, Nucleic Acids Research, vol. 19, suppl., pp. 2173-2188, 1991.

J. D.  Thompson, Gibson, T. J., Plewniak, F., Jeanmougin, F., and Higgins, D. G., ?The ClustalX windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools?, Nucleic Acids Research, vol. 24, pp. 4876-4882, 1997.

B.  Michot, Hassouna, N., and Bachellerie, J. - P., ?Secondary structure of mouse 28S rRNA and general model for the folding of the large rRNA in eukaryotes?, Nucleic Acids Research, vol. 12, pp. 4259-4279, 1984.

R. R.  Gutell and Fox, G. E., ?A compilation of large subunit RNA sequences presented in a structural format?, Nucleic Acids Research, vol. 16, Supplement, pp. r175-r269, 1988.

S. F.  Altschul, Madden, T. L., Schäffer, A. A., Zhang, J., Zhang, Z., Miller, W., and Lipman, D. J., ?Gapped BLAST and PSI-BLAST: a new generation of protein database search programs?, Nucleic Acids Research, vol. 25, pp. 3389-3402, 1997.