Alberto Gallini Claudio Ferretti Giancarlo Mauri Bio Molecular Engine: a bio-inspired environment for models of growing and evolvable computation. 249-256 2005 conf/gecco/2005w GECCO Workshops http://doi.acm.org/10.1145/1102256.1102314 db/conf/gecco/gecco2005w.html#GalliniFM05