Filippo Bonchi, Pawel Sobocinski, Fabio Zanasi. Lawvere Categories as Composed PROPs. Ichiro Hasuo. 13th International Workshop on Coalgebraic Methods in Computer Science (CMCS), Apr 2016, Eindhoven, Netherlands. Lecture Notes in Computer Science, LNCS-96
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Filippo Bonchi, Pawel Sobocinski, Fabio Zanasi. Lawvere Categories as Composed PROPs.