System E: Expansion Variables for Flexible Typing with Linear and Non-linear Types and Intersection Types.

Sébastien Carlier Jeff Polakow J. B. Wells A. J. Kfoury System E: Expansion Variables for Flexible Typing with Linear and Non-linear Types and Intersection Types. 294-309 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2986&spage=294 2004 conf/esop/2004 ESOP db/conf/esop/esop2004.html#CarlierPWK04