\ifx\undefined\bysame
\newcommand{\bysame}{\leavevmode\hbox to3em{\hrulefill}\thinspace}
\fi
\begin{thebibliography}{10}

\bibitem{dihe:newdir}
W.~Diffie and E.~Hellman, {\em New directions in cryptography}, IEEE
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\bibitem{fre:cichon}
D.~H. Fremlin, {\em Cichon's diagram}, 1983/1984, presented at the
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  Raymond, at the Universit{\'e} Pierre et Marie Curie, Paris, 23e ann{\'e}e.

\bibitem{gouja:lagrmeth}
I.~P. Goulden and D.~M. Jackson, {\em The enumeration of directed closed
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  European J. Combin. {\bf 2} (1981), 131--212.

\bibitem{hapa:graphenum}
F.~Harary and E.~M. Palmer, {\em Graphical enumeration}, Academic Press, 1973.

\bibitem{imlelu:oneway}
R.~Impagliazzo, L.~Levin, and M.~Luby, {\em Pseudo-random generation from
  one-way functions}, Proc. 21st STOC (1989), ACM, New York, 1990, pp.~12--24.

\bibitem{komiyo:unipfunc}
M.~Kojima, S.~Mizuno, and A.~Yoshise, {\em A new continuation method for
  complementarity problems with uniform p-functions}, Tech. Report B-194, Tokyo
  Inst. of Technology, Tokyo, 1987, Dept. of Information Sciences.

\bibitem{komiyo:lincomp}
\bysame, {\em A polynomial-time algorithm for a class of linear complementarity
  problems}, Tech. Report B-193, Tokyo Inst. of Technology, Tokyo, 1987, Dept.
  of Information Sciences.

\bibitem{liuchow:formalsum}
C.~J. Liu and Yutze Chow, {\em On operator and formal sum methods for graph
  enumeration problems}, SIAM J. Algorithms Discrete Methods {\bf 5} (1984),
  384--438.

\bibitem{mami:matrixth}
M.~Marcus and H.~Ming, {\em A survey of matrix theory and matrix inequalities},
  Complementary Series in Math. {\bf 14} (1964), 21--48.

\bibitem{miyoki:lincomp}
S.~Mizuno, A.~Yoshise, and T.~Kikuchi, {\em Practical polynomial time
  algorithms for linear complementarity problems}, Tech. Report~13, Tokyo Inst.
  of Technology, Tokyo, April 1988, Dept. of Industrial Engineering and
  Management.

\bibitem{moad:quadpro}
R.~D. Monteiro and I.~Adler, {\em Interior path following primal-dual
  algorithms, part {II}: Quadratic programming}, August 1987, Working paper,
  Dept. of Industrial Engineering and Operations Research.

\bibitem{ste:sint}
E.~M. Stein, {\em Singular integrals and differentiability properties of
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\bibitem{ye:intalg}
Y.~Ye, {\em Interior algorithms for linear, quadratic and linearly constrained
  convex programming}, Ph.D. thesis, Stanford Univ., Palo Alto, Calif., July
  1987, Dept. of Engineering--Economic Systems, unpublished.

\end{thebibliography}