Tom Hirschowitz Xavier Leroy J. B. Wells Call-by-Value Mixin Modules: Reduction Semantics, Side Effects, Types. 64-78 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2986&spage=64 2004 conf/esop/2004 ESOP db/conf/esop/esop2004.html#HirschowitzLW04