References:

J. M. Borwein, D. M. Bradley and D. J. Broadhurst,
Evaluations of k-fold Euler/Zagier sums: a compendium of results for arbitrary k.
Electronic Journal of Combinatorics, Volume 4(2) (1997), R5.

J. M. Borwein, D. M. Bradley, D. J. Broadhurst and P. Lisonek,
Special values of multidimensional polylogarithms.
CECM Preprint 98:106, Centre for Experimental and Constructive Mathematics, Simon Fraser University, Canada.

J. M. Borwein, D. M. Bradley, D. J. Broadhurst and P. Lisonek,
Combinatorial aspects of multiple zeta values.
Electronic Journal of Combinatorics, Volume 5(1) (1998), R38.