<bibl id="Abramowitz1997">Abramowitz, Milton, Irene A. Stegun (editors);
<emph>Mathematical Fuctions: With Formulas, Graphs, and Mathematical Tables</emph>.
Dover Publications Inc., December 1977, ISBN: 0-4866-1272-4.
</bibl>
<bibl id="AAP-math">ANSI/NISO Z39.59-1998;
<emph>AAP Math DTD</emph>,
Standard for Electronic Manuscript Preparation and MarkUp.
(Association of American Publishers, Inc., Washington, DC)
Bethesda, MD, 1988.
</bibl>
<bibl id="Buswell1996">Buswell, S., Healey, E.R. Pike, and
M. Pike; <emph>SGML and the Semantic Representation of Mathematics</emph>.
UIUC Digital Library Initiative SGML Mathematics Workshop, May 1996
and SGML Europe 96 Conference, Munich 1996.
</bibl>
<bibl id="Cajori1928">Cajori, Florian; <emph>A History of Mathematical
Notations</emph>, vol. I & II. Open Court Publishing Co., La Salle
Illinois, 1928 & 1929 republished Dover Publications Inc., New
York, 1993, xxviii+820 pp. ISBN 0-486-67766-4 (paperback).
</bibl>
<bibl id="Carroll1871">Carroll, Lewis [Rev. C.L. Dodgson];
<emph>Through the Looking Glass and What Alice Found There</emph>.
Macmillian & Co., 1871.
</bibl>
<bibl id="Chaundy1954">Chaundy, T.W., P.R. Barrett, and C. Batey;
<emph>The Printing of Mathematics. Aids for authors and editors and rules
for compositors and readers at the University Press, Oxford</emph>.
Oxford University Press, London, 1954, ix+105 pp.
</bibl>
<bibl id="Higham1993">Higham, Nicholas J.;
<emph>Handbook of writing for the mathematical sciences</emph>.
Society for Industrial and Applied Mathematics
(SIAM), Philadelphia, PA, 1993. xii+241 pp. ISBN: 0-89871-314-5.
</bibl>
<bibl id="ISOIEC10646-1">ISO/IEC JTC1/SC2/WG2;
<emph>ISO/IEC 10646-1: 2000</emph>, Information technology -- Universal-Octet Coded Character Set (UCS) -- Part 1: Architecture and Basic Multilingual Plane.
International Standards Organization, Geneva, Switzerland, 2000. Also published on CD-ROM.