Aldor-Combinat
Together with Martin Rubey I am implementing combinatorial species in Aldor.
We have not yet made an official release, but a preliminary version (documentation and sources) of Aldor-Combinat is available as a literate program. The complete sources of Aldor-Combinat can be accessed via
svn co svn://svn.risc.uni-linz.ac.at/hemmecke/combinat/Aldor-Combinat is distributed under the GNU General Public License (Version 2).
The official mailing list is at https://lists.sourceforge.net/lists/listinfo/aldor-combinat-devel. It is mirrored at http://dir.gmane.org/gmane.comp.mathematics.aldor-combinat.devel.
To cite our work use the followin BibTex entry.
@Misc{Hemmecke+Rubey:Aldor-Combinat:2006,
author = {Ralf Hemmecke and Martin Rubey},
title = {Aldor-Combinat: An Implementation of Combinatorial Species},
year = 2006,
note = {Available at \url{http://www.risc.uni-linz.ac.at/people/hemmecke/aldor/combinat/}}
}