@inproceedings{DBLP:conf/csl/CockettS09,
author = {J. Robin B. Cockett and
Luigi Santocanale},
title = {On the Word Problem for SP\{Sigma Pi\}-Categories, and the
Properties of Two-Way Communication},
booktitle = {CSL},
year = {2009},
pages = {194-208},
ee = {http://dx.doi.org/10.1007/978-3-642-04027-6_16},
crossref = {DBLP:conf/csl/2009},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
@proceedings{DBLP:conf/csl/2009,
editor = {Erich Gr{\"a}del and
Reinhard Kahle},
title = {Computer Science Logic, 23rd international Workshop, CSL
2009, 18th Annual Conference of the EACSL, Coimbra, Portugal,
September 7-11, 2009. Proceedings},
booktitle = {CSL},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
volume = {5771},
year = {2009},
isbn = {978-3-642-04026-9},
ee = {http://doi.dx.org/10.1007/978-3-642-04027-6},
bibsource = {DBLP, http://dblp.uni-trier.de}
}