Pietro Di Gianantonio Structures for Multiplicative Cyclic Linear Logic: Deepness vs Cyclicity. 130-144 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3210&spage=130 2004 conf/csl/2004 CSL db/conf/csl/csl2004.html#Gianantonio04