Robert I. McKay Jungseok Shin Tuan Hao Hoang Nguyen Xuan Hoai Naoki Mori Using compression to understand the distribution of buildingblocks ingenetic programming populations. 2501-2508 2007 IEEE Congress on Evolutionary Computation http://dx.doi.org/10.1109/CEC.2007.4424785 conf/cec/2007 db/conf/cec/cec2007.html#McKaySHHM07