@("http://doi.acm.org/10.1145/1614431.1614436"
"The Formal System λδ") +
"(<span class=\"date\">2009-11</span>)." +
@("http://doi.acm.org/10.1145/1614431.1614436"
"The Formal System λδ") +
"(<span class=\"date\">2009-11</span>)." +
@("http://tocl.acm.org/accepted/335guidi.pdf" "accepted") +
"<span class=\"date\">2008-07</span>)." +
"CoRR identifier" +
@("http://tocl.acm.org/accepted/335guidi.pdf" "accepted") +
"<span class=\"date\">2008-07</span>)." +
"CoRR identifier" +