%0 Conference Proceedings %F here97b %A Henglein, Fritz %A Rehof, Jakob %T The Complexity of Subtype Entailment for Simple Types %B Proc.\ 12th Annual IEEE Symposium on Logic in Computer Science (LICS), Warsaw, Poland %P 352-361 %I IEEE Computer Society %U http://www.diku.dk/hjemmesider/ansatte/henglein/papers/henglein1997b.pdf %8 July %D 1997 %K rectype