Pascal Cuoq Damien Doligez Hashconsing in an incrementally garbage-collected system: a story of weak pointers and hashconsing in ocaml 3.10.2. 13-22 2008 ML http://doi.acm.org/10.1145/1411304.1411308 conf/ml/2008 db/conf/ml/ml2008.html#CuoqD08